ACE025K3NTBP ACE025K3NVBP ACE025K3NQBP ACE025N3NTBP ACE025N3NVBP ACE025N3NQBP ACE025D3NTBP ACE025D3NVBP ACE025D3NQBP ACE025N3NVBP ACE 025N3NTBP ACE025 L3NVBP ACE025L3NTBP ACE025N4NQBP | ACE032K3NTBP ACE032K3NVBP ACE032K3NQBP ACE032N3NTBP ACE032N3NVBP ACE032N3NQBP ACE032D3NTBP ACE032D3NVBP ACE032D3NQBP ACE032N3NVBP ACE 032N3NTBP ACE032 L3NVBP ACE032L3NTBP ACE032N4NQBP | ACE038K3NTBP ACE038K3NVBP ACE038K3NQBP ACE038N3NTBP ACE038N3NVBP ACE038N3NQBP ACE038D3NTBP ACE038D3NVBP ACE038D3NQBP ACE038N3NVBP ACE 038N3NTBP ACE038 L3NVBP ACE038L3NTBP ACE038N4NQBP |
科友螺杆泵为各种螺杆泵提供了一个完整的售后零部件及服务,包括在客户的螺杆泵使用现场以及我公司的专业车间内对泵进行沟通,勘察,分析,以及根据20年的螺杆泵产品服务以及应用经验判断是否拆解、大修、还是改造,包括对现场泵应用的故障诊断和维修,并进行预防性维修计划。为客户节约时间以及成本。它包括:单螺杆泵,双螺杆泵,三螺杆泵,高压三螺杆泵,高压双螺杆泵,大流量螺杆泵,高压机床冷却泵,超高压力螺杆泵的紧急维修服务。全力以赴为客户排忧解难。我们将和您一道共同处理您的设备故障,以最小的成本、最短的时间快速恢复您的生产和运营。
科友螺杆泵维修服务范围: ACE 038L3 NVBP螺杆泵厂家
-完全免费的螺杆泵应用技术咨询&技术支持
-完全免费的螺杆泵应用维护保养维修培训技术支持
-螺杆泵配件服务
-现场维修或工厂内维修
-全球各地的螺杆泵测绘技术服务以及产品改进服务
-翻修优化和技术改造
-各螺杆泵机械密封形式优化和改造
-现场检查分析和故障隐患评估
-基于客户应用需要的改进方案和产品优化服务
-现场安装和调试
-工厂内各种螺杆泵的性能测试
-额外的一年的新泵质保期(同新泵出厂待遇一致)
-快速的互动响应时间
-日常维修保养和年度大修合同服务
-各类进口或国产螺杆泵以旧换新的超值产品服务(只收取成本材料费用和基本加工费用)
无论您现场的螺杆泵是什么型号,输送什么介质,来自哪个国家,欧洲的,美洲的,日本的,俄罗斯的任何生产厂商,或进口,或国产,或使用年限,科友螺杆泵与系统公司的服务团队永远是您的身边的螺杆泵专家,我们就是您的维修部,钳工班组,生产保障部,服务后勤,保证设备快速可靠运行。值得说明的关键是,科友螺杆泵公司专业的技术服务人员保证都是百分百的10年以上的现场工作经验。更为重要的是我们拥有世界一流的螺杆泵型线计算设计能力以及加工手段和设备。
您可以带上您的设备前来我司工厂考察,也可要求全程视频的维修服务方案。在任何地方您都可以看见我们的工程师如何为您的设备进行维修改造工作的。只要您需要,我们就出现在您身边,为您服务,为您解忧,为您分担。
主要服务品牌和产品系列:
LEISTRITZ - GERMANY
Pump model Pump type
L2 NG 126 180 ISOGI-G SCREW PUMP
L2 NT 126 210 IFOGA-G SCREW PUMP
L3 M 38 76 SCREW PUMP
L3 MF 38 76 AFHKU-G SCREW PUMP
L3 MF 45 90 SCREW PUMP
L3 MG 52 85 AHOKI-G SCREW PUMP
L3 MG 60 120 AFOGI-G SCREW PUMP
L3 NF 38 60 SCREW PUMP
L3 NF 38 76 AFOUN-G SCREW PUMP
L3 NF 45 70 SCREW PUMP
L3 NF 45 90 SCREW PUMP
L3 NF 60 160 SCREW PUMP
L3 NF 70 112 SCREW PUMP
L3 NG 20 SCREW PUMP
L3 NG 20 40 AFOUI-G SCREW PUMP
L3 NG 25 SCREW PUMP
L3 NG 25 35 AFOUI-G SCREW PUMP
L3 NG 25 50 AFOUI-G SCREW PUMP
L3 NG 32 45 SCREW PUMP
L3 NG 32 45 AFOUI G SCREW PUMP
L3 NG 32 45 AFOUI-G SCREW PUMP
L3 NG 32 64 SCREW PUMP
L3 NG 32 64 AFOUI-G SCREW PUMP
L3 NG 38 SCREW PUMP
L3 NG 38 76 AFOUI-G SCREW PUMP
L3 NG 38 60 SCREW PUMP
L3 NG 38 60 AFOUI-G SCREW PUMP
L3 NG 38 76 AFOUI-G SCREW PUMP
L3 NG 38 80 SCREW PUMP
L3 NG 45 70 AFOUI-G SCREW PUMP
L3 NG 45 90 SCREW PUMP
L3 NG 45 70 AFOUI-G SCREW PUMP
L3 NG 52 85 AFOUI-G SCREW PUMP
L3 NG 52 104 AFOUI-G SCREW PUMP
L3 NG 60 96 AFOUI-G SCREW PUMP
L3 NG 60 120 AFOUI-G SCREW PUMP
L3 NG 70 112 AFOUI-G SCREW PUMP
L3 NG 100 172 ASOUI-G SCREW PUMP
L3 NG 200 170 ASOUI-G SCREW PUMP
L4 MG 126 120 SCREW PUMP
L4 NG 106 84 AHOKI-GQ SCREW PUMP
L4 NG 126 78 AHOKI-G SCREW PUMP
L4 NG 126 78 AHOKR-G SCREW PUMP
L4 NG 140 110 SCREW PUMP
L4 NG 164 96 AHHKI-G SCREW PUMP
L4 NG 240 160 AHOKIR-G SCREW PUMP
L4 NG 240 160 ASMKI-G SCREW PUMP
LA 62 44 SLH42 GL SCREW PUMP
LB 16 40 50 SCREW PUMP
LN 62 104 SCREW PUMP
LN 126 180 80 GL SCREW PUMP
LNF 107 200 50 GL SCREW PUMP
LNS 140 122 FL GL SCREW PUMP
LNS 172 120 FL GL SCREW PUMP
S 3 F 120 R46 KV12.2 SCREW PUMP
S 3 F 210 R40 KV12.2 SCREW PUMP
S 3 F 210 R40 KV12.2 W1 SCREW PUMP
SCF 20 R 56 SCREW PUMP
SCF 40 R 46 SCREW PUMP
SEBP 200 1 E11 PO1 SCREW PUMP
SEP 100 1A11 P01 SCREW PUMP
SEP 380 1A11 PO1 113 PP 3207 mo SCREW PUMP
ACE 038L3 NVBP螺杆泵厂家
SLF 40 R 54 U12.1 SCREW PUMP
SLF 40 R 54 U12.1 SCREW PUMP
SLF 660 ER 46 U12.1 W1 DS44A SCREW PUMP
SLF 80 ER 42 U12.1 SCREW PUMP
SLF 120 ER 42 U12.1 SCREW PUMP
SLF 210 ER 40 U12.1 SCREW PUMP
SLF 280 ER 46 U12.1 SCREW PUMP
SLF 280 ER 46 U12.1 SCREW PUMP
SLF 940 ER 46 U12.1 SCREW PUMP
SLS 120 ER 42 SCREW PUMP
SLS 210 ER 40 U12.1 SCREW PUMP
SLS 210 ER 46 U12.1 SCREW PUMP
SLS 440 ER 46 U12.1 SCREW PUMP
SLS 660 ER 40 U12.1 SCREW PUMP
SLS 660 ER 44 U12.1 SCREW PUMP
SLS 940 ER 46 U12.1 SCREW PUMP
SLS 940 ER 50 SCREW PUMP
SLS1300 ER 42 U12.1 SCREW PUMP
SNF 40 ER 46 E6.7 SCREW PUMP
SNF 40 ER 46 E6.9 SCREW PUMP
SNF 40 ER 54 E6.7 SCREW PUMP
SNF 80 ER 36 E6.7 SCREW PUMP
SNF 80 ER 42 SCREW PUMP
SNF 80 ER 46 E6.7 SCREW PUMP
SNF 80 ER 46 E6.7 SCREW PUMP
SNF 80 ER 54 E6.7 SCREW PUMP
SNF 80 R 42 E6.7 SCREW PUMP
SNF 120 ER 42 E6.7 SCREW PUMP
SNF 120 ER 46 E6.7 SCREW PUMP
SNF 120 ER 51 E8.9 SCREW PUMP
SNF 210 ER 40 E6.7 SCREW PUMP
SNF 210 ER 46 E6.7 SCREW PUMP
SNF 210 ER 46 E6.7 DS41A SCREW PUMP
SNF 210 ER 46 E8.9 SCREW PUMP
SNF 280 ER 43 E6.7 DS44A SCREW PUMP
SNF 280 ER 43 E6.7 DS50A SCREW PUMP
SNF 280 ER 46 E6.7 DS44A SCREW PUMP
SNF 440 ER 54 U12.1 SCREW PUMP
SNF 440 R40 D6 SCREW PUMP
SNF 940 SCREW PUMP
SNGF 80 ER 46 E6.7 SCREW PUMP
SNH 40 R 54 D6 SCREW PUMP
SNH 80 R 46 K SCREW PUMP
SNH 120 ER 46 E8.9 W1E SCREW PUMP
SNH 120 ER 46 U12.1 SCREW PUMP
SNH 120 R 46 E6 SCREW PUMP
SNH 210 46 E6 SCREW PUMP
SNH 210 46 E6 SCREW PUMP
SNH 440 ER46 PD SCREW PUMP
SNH 440 R 46 D6 SCREW PUMP
SNH 660 ER44 D6.7 W1 SCREW PUMP
SNH 660 R 54 D6 SCREW PUMP
SNS 80 42 E6.4 SCREW PUMP
SNS 120 ER 54 E6.7 SCREW PUMP
SNS 120 R 46 D6 SCREW PUMP
SNS 120 R 54 D6 SCREW PUMP
SNS 210 R 46 SCREW PUMP
SNS 210 R 46 D6 SCREW PUMP
SNS 210 R 46 U12.1 SCREW PUMP
SNS 440 ER 46 E6.7 SCREW PUMP
SNS 660 ER 44 E6.7 SCREW PUMP
SNS 660 ER 44 E8.9 SCREW PUMP
SNS 660 R 46 U6 SCREW PUMP
SNS 940 ER42 E8.9 SCREW PUMP
SNS1300 ER 42 E6.7 DS44A SCREW PUMP
SNS1700 ER 46 E6.9 DS50A SCREW PUMP
SPF 10 R 28 G8.3 SCREW PUMP
SPF 10 R 38 G8.3 SCREW PUMP
SPF 10 R 46 G8.3 SCREW PUMP
SPF 10 R 56 G8.3 SCREW PUMP
SPF 20 R 38 G8.3 SCREW PUMP
SPF 20 R 46 G10 SCREW PUMP
SPF 20 R 46 G8.3 SCREW PUMP
SPF 20 R 46 G8.3 SCREW PUMP
SPF 20 R 56 G8.3 SCREW PUMP
SPF 20 R 56 G8.3 SCREW PUMP
SPF 40 R 38 G8.3 SCREW PUMP
SPF 40 R 38 G8.3 SCREW PUMP
SPF 40 R 38 U8.3 SCREW PUMP
SPF 40 R 38 U8.3 SCREW PUMP
SPF 40 R 46 G8.3 SCREW PUMP
SPF 40 R 46 U8.3 SCREW PUMP
SPF 40 R 46 U8.3 SCREW PUMP
SPF 40 R 54 G8.3 SCREW PUMP
SPZ 10 R 46 G8.3 SCREW PUMP
SPZ 20 R 38 G8.3 SCREW PUMP
SZS 940 R36 U6.5 SCREW PUMP
SZS 940 R36 U6.5 SCREW PUMP
SZS 940 R42 U6.5 SCREW PUMP
SZS 1300 R38 U6.5 SCREW PUMP
SZS 1300 R38 U6.5 SCREW PUMP
SZS 1300 R42 U6.5 SCREW PUMP
TRD 20 R37 P7.12V W201 SCREW PUMP
TRD 20 R37 P7.13V W201 SCREW PUMP
TRD 20 R46 P7.12V W201 SCREW PUMP
TRD 20 R46 P7.13V W201 SCREW PUMP
TRE 20 R46 U18.1 V W202 SCREW PUMP
TRE 20 R46 U18.2 V W202 SCREW PUMP
TRE 40 R37 U18.1 V W201 SCREW PUMP
TRE 40 R37 U18.1 V W202 SCREW PUMP
TRE 40 R37 U18.2 V W202 SCREW PUMP
TRE 40 R46 U18.2 V W202 SCREW PUMP
TRL 140 R39 U8.6 SCREW PUMP
TRL 140 R46 U8.6 SCREW PUMP
TRL 140 R46 U8.8 SCREW PUMP
TRL 210 R40 U8.6 SCREW PUMP
TRL 210 R46 U8.6 SCREW PUMP
TRL 280 R43 U8.6 SCREW PUMP
TRL 280 R46 U8.6 SCREW PUMP
TRL 280 R46 U8.6VW115 SCREW PUMP
TRL 440 R40 U8.6 W115 SCREW PUMP
TRL 440 R46 U8.6 W115 SCREW PUMP
ZAS 350 G8.3 F 0.6b W20 SCREW PUMP
ZAS 550 G8.3 SCREW PUMP
ZAS 850 G8.3 SCREW PUMP
ZAS 1650 G8.3 SCREW PUMP
ZAS 2200 G8.3 SCREW PUMP
ZAS 2250 G8.3 SCREW PUMP
ZAS 3150 G8.3 SCREW PUMP
ZASV 150 G8.3 SCREW PUMP
ZASV 250 G8.3 SCREW PUMP
ZASV 350 G8.3 SCREW PUMP
ZASV 550 G8.3 SCREW PUMP
ZASV 850 G8.3 SCREW PUMP
ZASV 1150 G8.3 SCREW PUMP
ZASV 1650 G8.3 SCREW PUMP
ZASV 2250 G8.3 SCREW PUMP
ZASV 3150 G8.3 SCREW PUMP
ZASV 3600 G8.3 SCREW PUMP
SFI150G 19US W195 E
SFI250G 19US W195 E
SFI350G 19US W195 E
SFI550G 19US W195 E
SFI850G 19US W195 E
SFI1150G 19US W195 E
SFI1650G 19US W195 E
SFI2250G 19US W195 E
SFI3150G 19US W195 E
SFI3600G 19US W195 E
SFI4750G 19US W195 E
SFI6450G 19US W195 E
TAIKO KIKAI - JAPAN
Pump model Pump type
EMC 100 MCT CENTRIFUGAL PUMP
EMC 100 MCT-7.5 CENTRIFUGAL PUMP
EMC 200 MCT CENTRIFUGAL PUMP
HG 50MA SCREW PUMP
HGS 80MAB SCREW PUMP
HHB 4MJ SCREW PUMP
HHB 15MJ SCREW PUMP
HNP 401 SCREW PUMP
HNP 801 SCREW PUMP
MSH 15 CENTRIFUGAL PUMP
MST 90HT CENTRIFUGAL PUMP
MSV 65 4 M CENTRIFUGAL PUMP
MSV 270 6 M CENTRIFUGAL PUMP
MSV 750W CENTRIFUGAL PUMP
NHG 0.5 SCREW PUMP
NHG 1 SCREW PUMP
NHG 1.5 SCREW PUMP
NHG 1MT SCREW PUMP
NHG 2 SCREW PUMP
NHG 2MA SCREW PUMP
NHG 2MAB SCREW PUMP
NHG 2MT SCREW PUMP
NHG 3 SCREW PUMP
NHG 4 SCREW PUMP
NHG 5 SCREW PUMP
NHG 6 SCREW PUMP
NHG 6MT SCREW PUMP
NHG 7.5 SCREW PUMP
NHG 7.5MT SCREW PUMP
NHG 10 SCREW PUMP
NHG 10MAB SCREW PUMP
NHG 15MAB SCREW PUMP
NHG 20MAB SCREW PUMP
NHG 25MT SCREW PUMP
NHG 30 SCREW PUMP
NHGH 15MT SCREW PUMP
NMG - 0,1 SCREW PUMP
VG 65 SCREW PUMP
VG 100 SCREW PUMP
IMO - SWEDEN
Pump model Pump type
ABF 100 3N2M SCREW PUMP
ABF 110 3N4M SCREW PUMP
ABF 125 3LN4 SCREW PUMP
ABF 140 3N2M SCREW PUMP
ABF 140 3N4M SCREW PUMP
ABF 140 3PN4M SCREW PUMP
ABQ 100 3 DN5M SCREW PUMP
ABQ 100 3 N5 IRYP SCREW PUMP
ABQ 100 N5 IRYP SCREW PUMP
ABQ 110 DN5 SCREW PUMP
ABQ 110 3 SCREW PUMP
ABQ 110 3L DN5M SCREW PUMP
ABQ 125 3 SCREW PUMP
ABQ 125 3 DN 5M SCREW PUMP
ABQ 125 3L SCREW PUMP
ABQ 125 3L DN5M SCREW PUMP
ABQ 125 L5 IRVP SCREW PUMP
ABQ 140 3 DN5M SCREW PUMP
ABQ 140 3N4M SCREW PUMP
ABQ 140 P5 IRVP SCREW PUMP
ABQ 180 3L W4M SCREW PUMP
ACD 025 2LN6F SCREW PUMP
ACD 025 2N6F SCREW PUMP
ACD 025 L6 IRBO SCREW PUMP
ACD 025 L6 IRBP SCREW PUMP
ACD 025 L6 ITBP SCREW PUMP
ACD 025 L6 IVBP SCREW PUMP
ACD 025 L6 NTBP SCREW PUMP
ACD 025 L6 NVBP SCREW PUMP
ACD 025 N1 NRBP SCREW PUMP
ACD 025 N6 IRBP SCREW PUMP
ACD 025 N6 IVBP SCREW PUMP
ACD 025 N6 NVBO SCREW PUMP
ACD 025 N6 NVBP SCREW PUMP
ACE 025 2L N6F SCREW PUMP
ACE 025 2L2 SCREW PUMP
ACE 025 2NC SCREW PUMP
ACE 025 2NC 615A SCREW PUMP
ACE 025 2NC60 SCREW PUMP
ACE 025 2TAA6 SCREW PUMP
ACE 025 L1 IVBO SCREW PUMP
ACE 025 L1 IVBP SCREW PUMP
ACE 025 L2 NTBO SCREW PUMP
ACE 025 L2 NTBP SCREW PUMP
ACE 025 L2 NVBP SCREW PUMP
ACE 025 L3 NQBP SCREW PUMP
ACE 025 L3 NTBP SCREW PUMP
ACE 025 L3 NVBP SCREW PUMP
ACE 025 N NTBO SCREW PUMP
ACE 025 N1 IRBP SCREW PUMP
ACE 025 N1 IVBO SCREW PUMP
ACE 025 N1 IVBP SCREW PUMP
ACE 025 N2 NTBO SCREW PUMP
ACE 025 N2 NTBP SCREW PUMP
ACE 025 N2 NVBO SCREW PUMP
ACE 025 N2 NVBP SCREW PUMP
ACE 025 N3 IVBP SCREW PUMP
ACE 025 N3 NQBP SCREW PUMP
ACE 025 N3 NTBP SCREW PUMP
ACE 025 N3 NVBP SCREW PUMP
ACE 032 2N2F615A SCREW PUMP
ACE 032 2NC 615A SCREW PUMP
ACE 032 2NC60 SCREW PUMP
ACE 032 2NC60A SCREW PUMP
ACE 032 2NC615A SCREW PUMP
ACE 032 K2 NTBO SCREW PUMP
ACE 032 K3 NTBP SCREW PUMP
ACE 032 L1 IRBP SCREW PUMP
ACE 032 L1 ITBO SCREW PUMP
ACE 032 L1 IVBO SCREW PUMP
ACE 032 L1 IVBP SCREW PUMP
ACE 032 L1 NVBP SCREW PUMP
ACE 032 L2 NTBO SCREW PUMP
ACE 032 L2 NTBP SCREW PUMP
ACE 032 L2 NVBO SCREW PUMP
ACE 032 L2 NVBP SCREW PUMP
ACE 032 L3 NQBP SCREW PUMP
ACE 032 L3 NTBP SCREW PUMP
ACE 032 L3 NVBP SCREW PUMP
ACE 032 N1 IRBO SCREW PUMP
ACE 032 N1 IRBP SCREW PUMP
ACE 032 N1 IVBO SCREW PUMP
ACE 032 N1 IVBP SCREW PUMP
ACE 032 N1 NTBO SCREW PUMP
ACE 032 N2 IRBO SCREW PUMP
ACE 032 N2 NTBO SCREW PUMP
ACE 032 N2 NTBP SCREW PUMP
ACE 032 N2 NVBO SCREW PUMP
ACE 032 N2 NVBP SCREW PUMP
ACE 032 N3 NQBP SCREW PUMP
ACE 032 N3 NTBP SCREW PUMP
ACE 032 N3 NVBP SCREW PUMP
ACE 032 NC615 SCREW PUMP
ACE 032 NC615A SCREW PUMP
ACE 038 2 KNC615 SCREW PUMP
ACE 038 2 NC 615 SCREW PUMP
ACE 038 2N2F SCREW PUMP
ACE 038 2NC60 SCREW PUMP
ACE 038 2NC615A SCREW PUMP
ACE 038 D3 NTBP SCREW PUMP
ACE 038 K1 IRBP SCREW PUMP
ACE 038 K1 IVBO SCREW PUMP
ACE 038 K1 IVBP SCREW PUMP
ACE 038 K2 NTBO SCREW PUMP
ACE 038 K2 NTBO A368 SCREW PUMP
ACE 038 K2 NTBO T4E SCREW PUMP
ACE 038 K2 NTBP SCREW PUMP
ACE 038 K2 NVBO SCREW PUMP
ACE 038 K3 IVBP SCREW PUMP
ACE 038 K3 NQBP SCREW PUMP
ACE 038 K3 NTBO SCREW PUMP
ACE 038 K3 NTBP SCREW PUMP
ACE 038 K3 NVBP SCREW PUMP
ACE 038 L2 NTBP SCREW PUMP
ACE 038 L3 NTBP SCREW PUMP
ACE 038 N1 IRBO SCREW PUMP
ACE 038 N1 IRBP SCREW PUMP
ACE 038 N1 ITBO SCREW PUMP
ACE 038 N1 ITBP SCREW PUMP
ACE 038 N1 IVBO SCREW PUMP
ACE 038 N1 IVBP SCREW PUMP
ACE 038 N2 8443 SCREW PUMP
ACE 038 N2 NTBO SCREW PUMP
ACE 038 N2 NTBP SCREW PUMP
ACE 038 N2 NVBO SCREW PUMP
ACE 038 N2 NVBP SCREW PUMP
ACE 038 N3 NQBP SCREW PUMP
ACE 038 N3 NTBP SCREW PUMP
ACE 038 N3 NVBP SCREW PUMP
ACE 038 N3 NVBP T4S Q101 SCREW PUMP
ACF 080 3N3F SCREW PUMP
ACF 080 3N4F SCREW PUMP
ACF 080 K4 IRBO SCREW PUMP
ACF 080 K4 IRBP SCREW PUMP
ACF 080 K4 NVBP SCREW PUMP
ACF 080 N4 IRBO SCREW PUMP
ACF 080 N4 IRBP SCREW PUMP
ACF 090 3N3F SCREW PUMP
ACF 090 K4 IRBO SCREW PUMP
ACF 090 K4 IRBP SCREW PUMP
ACF 090 K5 IRBO SCREW PUMP
ACF 090 N4 IRBO SCREW PUMP
ACF 090 N4 IRBP SCREW PUMP
ACF 100 3N2F SCREW PUMP
ACF 100 3N3F SCREW PUMP
ACF 100 3N4F SCREW PUMP
ACF 100 K4 IRBO SCREW PUMP
ACF 100 K4 IRBP SCREW PUMP
ACF 100 N4 IRBO SCREW PUMP
ACF 100 N4 IRBP SCREW PUMP
ACF 100 N5 IVBP SCREW PUMP
ACF 110 3LN3F SCREW PUMP
ACF 110 3N3F SCREW PUMP
ACF 110 L4 IRBP SCREW PUMP
ACF 110 N4 IRBO SCREW PUMP
ACF 110 N4 IRBP SCREW PUMP
ACF 110 N5 NVBP SCREW PUMP
ACF 125 3LN2F SCREW PUMP
ACF 125 3LN3F SCREW PUMP
ACF 125 3LN4F SCREW PUMP
ACF 125 3N3F SCREW PUMP
ACF 125 L4 IRBO SCREW PUMP
ACF 125 L4 IVBO SCREW PUMP
ACF 125 L5 IVBP SCREW PUMP
ACF 125 N4 IRBO SCREW PUMP
ACG 045 2N2F SCREW PUMP
ACG 045 2N2F60 SCREW PUMP
ACG 045 2N2F60A SCREW PUMP
ACG 045 2N3F SCREW PUMP
ACG 045 K NTBP SCREW PUMP
ACG 045 K5 IVBO SCREW PUMP
ACG 045 K5 IVBP SCREW PUMP
ACG 045 K5 NTBP SCREW PUMP
ACG 045 K6 IVBO SCREW PUMP
ACG 045 K6 IVBP SCREW PUMP
ACG 045 K6 NTBO SCREW PUMP
ACG 045 K6 NTBP SCREW PUMP
ACG 045 K7 NTBP SCREW PUMP
ACG 045 K7 NVBP SCREW PUMP
ACG 045 N2F SCREW PUMP
ACG 045 N3 IVBP SCREW PUMP
ACG 045 N5 IVBO SCREW PUMP
ACG 045 N5 IVBP SCREW PUMP
ACG 045 N5 NTBP SCREW PUMP
ACG 045 N5 NVBP SCREW PUMP
ACG 045 N6 ITBP SCREW PUMP
ACG 045 N6 IVBO SCREW PUMP
ACG 045 N6 IVBP SCREW PUMP
ACG 045 N6 NTBO SCREW PUMP
ACG 045 N6 NTBP SCREW PUMP
ACG 045 N6 NVBO SCREW PUMP
ACG 045 N7 NTBP SCREW PUMP
ACG 045 NTBP SCREW PUMP
ACG 052 2N2F SCREW PUMP
ACG 052 2N2F60 SCREW PUMP
ACG 052 2N2F615A SCREW PUMP
ACG 052 2N3F SCREW PUMP
ACG 052 2N4 SCREW PUMP
ACG 052 2NF SCREW PUMP
ACG 052 K5 IVBO SCREW PUMP
ACG 052 K5 NTBP SCREW PUMP
ACG 052 K6 IVBO SCREW PUMP
ACG 052 K6 NTBP SCREW PUMP
ACG 052 K7 NTBP SCREW PUMP
ACG 052 K7 NVBP SCREW PUMP
ACG 052 N2F SCREW PUMP
ACG 052 N3 IVBP SCREW PUMP
ACG 052 N5 IVBO SCREW PUMP
ACG 052 N5 IVBP SCREW PUMP
ACG 052 N5 NTBP SCREW PUMP
ACG 052 N5 NVBO SCREW PUMP
ACG 052 N5 NVBP SCREW PUMP
ACG 052 N6 IVBO SCREW PUMP
ACG 052 N6 IVBP SCREW PUMP
ACG 052 N6 NTBP SCREW PUMP
ACG 052 N7 NTBP SCREW PUMP
ACG 052 N7 NVBP SCREW PUMP
ACG 060 2N2F SCREW PUMP
ACG 060 2N3F SCREW PUMP
ACG 060 K6 NTBP SCREW PUMP
ACG 060 K7 NTBP SCREW PUMP
ACG 060 N3 IVBO SCREW PUMP
ACG 060 N5 IVB0 SCREW PUMP
ACG 060 N5 IVBO SCREW PUMP
ACG 060 N5 IVBP SCREW PUMP
ACG 060 N5 NVBP SCREW PUMP
ACG 060 N6 IVBO SCREW PUMP
ACG 060 N6 IVBP SCREW PUMP
ACG 060 N6 NTBP SCREW PUMP
ACG 060 N7 NTBP SCREW PUMP
ACG 070 2 N3F SCREW PUMP
ACG 070 2N2F SCREW PUMP
ACG 070 2N2F 60 SCREW PUMP
ACG 070 2N2F 615A SCREW PUMP
ACG 070 2N3F SCREW PUMP
ACG 070 2N3F SCREW PUMP
ACG 070 2N3F 615A SCREW PUMP
ACG 070 2NF SCREW PUMP
ACG 070 K5 IVBO SCREW PUMP
ACG 070 K5 NTBP SCREW PUMP
ACG 070 K6 ITBP SCREW PUMP
ACG 070 K6 IVBO SCREW PUMP
ACG 070 K6 IVBP SCREW PUMP
ACG 070 K7 NTBP SCREW PUMP
ACG 070 K7 NVBP SCREW PUMP
ACG 070 N2 IVBO SCREW PUMP
ACG 070 N3 IRBO SCREW PUMP
ACG 070 N5 IVBO SCREW PUMP
ACG 070 N5 IVBP SCREW PUMP
ACG 070 N5 NTBP SCREW PUMP
ACG 070 N6 ITBP SCREW PUMP
ACG 070 N6 IVBO SCREW PUMP
ACG 070 N7 NTBP SCREW PUMP
ACG 070 N7 NVBP SCREW PUMP
ACG 070 x7 NTBP SCREW PUMP
LPD 015 N1 IVBP SCREW PUMP
LPD 015 N1 IVBP A394 SCREW PUMP
LPD 020 N1 IVBP SCREW PUMP
LPQ 110 N1 IRYP SCREW PUMP
LPQ 110 N1 ITYP A020 SCREW PUMP
LPQ 110 N1 ITYP A430 SCREW PUMP
LPQ 125 J1 IRYP SCREW PUMP
LPQ 125 J1 NTYP SCREW PUMP
LPQ 125 L1 IRYP SCREW PUMP
ALFA LAVAL - SWEDEN
Pump model Pump type
ACP 025 L1 NVBP SCREW PUMP
ACP 025 L2 NTBP SCREW PUMP
ACP 025 L6 NVBP SCREW PUMP
ACP 025 N1 IVBP SCREW PUMP
ACP 025 N1 NVBP SCREW PUMP
ACP 025 N2 NTBP SCREW PUMP
ACP 025 N6 NVBP SCREW PUMP
ACP 032 L1 NVBP SCREW PUMP
ACP 032 L3 NVBP SCREW PUMP
ACP 032 N1 NRBP SCREW PUMP
ACP 032 N1 NVBP SCREW PUMP
ACP 032 N2 NTBP SCREW PUMP
ACP 032 N3 NVBP SCREW PUMP
ACP 038 K1 NVBP SCREW PUMP
ACP 038 K3 NVBP SCREW PUMP
ACP 038 N1 NRBP SCREW PUMP
ACP 038 N1 NVBP SCREW PUMP
ACP 038 N3 NVBP SCREW PUMP
ACP 045 K2 NVBP SCREW PUMP
ACP 045 K5 NVBP SCREW PUMP
ACP 045 K7 NVBP SCREW PUMP
ACP 045 N7 NVBP SCREW PUMP
ACP 052 K7 NVBP SCREW PUMP
ACP 060 K7 NVBP SCREW PUMP
NANIWA - JAPAN
Pump model Pump type
AHG 25 SCREW PUMP
ALG 20 SCREW PUMP
ALG 25N SCREW PUMP
ALG 25SJ SCREW PUMP
ALG 32N SCREW PUMP
ALG 32SJ SCREW PUMP
ALG 32WJ SCREW PUMP
ALG 40 SCREW PUMP
ALG 40N SCREW PUMP
ALG 40SJ SCREW PUMP
ALG 50 SCREW PUMP
ALG 65 SCREW PUMP
ALG 80 SCREW PUMP
ALGT 40B SCREW PUMP
ALGT 40M SCREW PUMP
ALGT 50 SCREW PUMP
ALGT 50B SCREW PUMP
ALGT 65B SCREW PUMP
ALGV 65B SCREW PUMP
ALGV 100B SCREW PUMP
ALGV 150BSJ SCREW PUMP
HOUTTUIN - NEDERLAND
Pump model Pump type
211.118.064.100.10 SCREW PUMP
211.118.064.400.10.1B SCREW PUMP
211.118.070.100.10.1BB SCREW PUMP
211.135.075.100.10.1BB SCREW PUMP
211.135.084.100.40 SCREW PUMP
211.135.092.100.10.1BB SCREW PUMP
211.150.067.N SCREW PUMP
211.150.092.100.10.1BB SCREW PUMP
211.150.102.000.10.1B SCREW PUMP
211.150.102.100.10 SCREW PUMP
211.150.112.000.10 SCREW PUMP
211.165.102 SCREW PUMP
211.165.112.000.10.1B SCREW PUMP
211.210.112.000.10.1BB SCREW PUMP
216.135.092.500.100 SCREW PUMP
229.226.40 SCREW PUMP
236.225.122.500.SP.42.5.B1 SCREW PUMP
249.224.136.030.40.5B3 SCREW PUMP
249.226.102.030.4G.5G3 SCREW PUMP
249.244.136.030.43.5G3 SCREW PUMP
249.244.136.501.40.5CV SCREW PUMP
249.265.164.000.60 SCREW PUMP
2D 235 136 H0S2C4 5B SCREW PUMP
KRAL - AUSTRIA
Pump model Pump type
C 15 118 - DS7 SCREW PUMP
DNX 160 SCREW PUMP
DS3 2300.11 NEG15-57 SCREW PUMP
K 15 01 SCREW PUMP
K 20 01 SCREW PUMP
K 32 21 SCREW PUMP
K 32 3C1 SCREW PUMP
K 42 21 A SCREW PUMP
K 55 21 A SCREW PUMP
K 118.21A SCREW PUMP
K 370 SCREW PUMP
KF 10 2A1A0213 SCREW PUMP
KF 15 2A1A03 SCREW PUMP
KF 15 3B1A0213 SCREW PUMP
KF 15 DBA002182 SCREW PUMP
KF 20 2A1A0210 SCREW PUMP
KF 20 AAA000216 SCREW PUMP
KF 20 BBA 001 344 SCREW PUMP
KF 20 BBA000737 SCREW PUMP
KF 32 2A1A0613 SCREW PUMP
KF 32 ACA001368 SCREW PUMP
KF 32 BAA000447 SCREW PUMP
KF 42 2107 SCREW PUMP
KF 42 2A1A 613 SCREW PUMP
KF 42 3A1A07A19 SCREW PUMP
KF 42 BAA + 80 SCREW PUMP
KF 42 BAA000217 SCREW PUMP
KF 42 BAAA00248 SCREW PUMP
KF 42 DBA001686 SCREW PUMP
KF 55 3A1A10BKU1 SCREW PUMP
KF 55 3B1A SCREW PUMP
KF 55 9BIAKU1 SCREW PUMP
KF 55 BAA000248 SCREW PUMP
KF 74 2A1A SCREW PUMP
KF 74 BBA000286 SCREW PUMP
KF 74 BBA000287 SCREW PUMP
KF 74 BBA003073 SCREW PUMP
KF 74 DBA000283 SCREW PUMP
KF 85 3A1A11BKU1 SCREW PUMP
KF 85 BAA001546 SCREW PUMP
KF 118 3B1A SCREW PUMP
KF 118+100 SCREW PUMP
KF 160 DBA001172 SCREW PUMP
KF 370+132 SCREW PUMP
KFUG 15 SCREW PUMP
KFUG 32 SCREW PUMP
KFUG 42 SCREW PUMP
KFUG 42.01 SCREW PUMP
KFUG 55 SCREW PUMP
KFUG 55 01A SCREW PUMP
KFUG 85 100-4/2.5 SCREW PUMP
KFUG 118 SCREW PUMP
KFUG 160 SCREW PUMP
KFUG 210 SCREW PUMP
KFUG 275 SCREW PUMP
KV 550 3A26 SCREW PUMP
KV 550+160 SCREW PUMP
KVUG 32+80 SCREW PUMP
KVUG 55+100 SCREW PUMP
KVUG 210+112 SCREW PUMP
KVUG 210+132 SCREW PUMP
差压变送器用转接头(1/2NPT-Φ14) | |
![]() |
![]() | 产品信息 |
型号: | |
规格: | |
技术指标: | 用于冶金、化工、制药等行业适用于介质信号或流通管路中,可配各种压力、差压变送器、压力开关、差压开关引压之用。 |
全球通用全范围交流(直流)输入电压 |
国际安规认证:UL/CUL/TUV/CB/CE |
内置主动式PFC,功率因素>0.95 |
有短路保护/过载保护/过电压保护/过温度保护 |
带速度控制的内置直流风扇强制通风冷却 |
DC输出范围可调至额定输出的40%~110% |
高功率密度21.4W/in3 |
最多可4台并联使用,功率可达8000W(3+1) |
有报警信号输出(TTL电平和继电器触点) |
内置12V/0.8A和5V/0.3A辅助供电电路用于远端控制 |
内置远端监测、远端控制开关机功能 |
1U高度41mm |
采用无铅制程,符合环保RoHS要求 |
3年质保 |
交流输入电压范围… | 90~264VAC/127~370VDC | |
输入浪涌电流……… | 冷启动, 230V时为50A | |
电压调整范围……… | 额定输出电压的-30%~+10% | |
功率因素…………… | PF〉0.97/230VAC (满载时) | |
漏电流……………… | <2mA / 240VAC | |
过载保护…………… | 过电流点在105%~125%,自动检测,自动复原 | |
过电压保护………… | 额定输出电压的120%~140%时关断输出电压,重启复原 | |
过温度保护………… | 95℃±5℃(功率桥散热器温度)时关断,温度下降后自动恢复 | |
启动,上升,保持时间 | 230VAC满载时1500ms,60ms,16ms | |
绝缘特性…………… | 输入端与输出端间:3KVAC,输入端与外壳间:1.5KVAC,输出端与外壳间:0.5KVAC 1分钟 | |
工作温度…………… | -35~+70℃(参见输出降载曲线) | |
抗震动性…………… | 10~500Hz,2G 10分钟/周期,XYZ各轴各60分钟 | |
安规认证…………… | 通过UL60950-1,TUV EN60950-1认证 | |
电磁兼容标准……… | 发射:EN55022(CISPR22) class B 谐波:EN61000-3-2,-3 | |
抗干扰: EN61000-4-2,3,4,5,6,8,11,EN61000-6-2(EN50082-2),A级重工业标准 | ||
MTBF平均无故障时间 | ≥4.63万小时,MIL-HDBK-217F(25℃) | |
接线方式…………… | 输入3P/10mm带盖端子排,输出:铜导流排 | |
机壳编号…………… | 952D | |
外形尺寸(L*W*H)mm | 295×127×41 | |
重量及包装………… | 1.95公斤/只;每箱6只/12.7公斤/0.028立方米 |
刀闸阀具有结构简单紧凑、设计合理、轻型节材、密封可靠、操作轻便灵活、体积小、通道流畅、流阻小、重量轻、易安装、易拆卸等优点,彻底解决了普通闸阀、平板闸阀、截止阀、调节阀、蝶阀、球阀等阀门的重量大、流阻大、面积大、难安装等疑难问题,可取代通用切断阀和调节阀,可在工作压力1.0MPa-2.5MPa,使用温度-29-550℃情况下正常工作。刀型闸阀的闸板具有剪切功能,可刮除密封面上的粘着物,自动清除杂物,不锈钢闸板可防止腐蚀引起的密封泄漏。
刀型闸阀按照口径不同制成暗杆和明杆两种形式(暗杆DN50~900mm,明杆DN50~900mm)。
刀型闸阀内部可制成V形、三角形、五角形通道。V型闸板可作为调节控制使用。
刀型闸阀连接形式有对夹式、法兰支耳式,密封有金属对金属硬密封、金属对聚胺脂、带增强的聚四氟乙烯软密封。
刀型闸阀按传动方式可分为:手动(手轮、手动拉链)、蜗轮蜗杆传动(正齿轮传动、伞齿轮传动)、气动、电动、液动等;
刀型闸阀按控制方式可分为:手动控制、气动控制、电磁控制、模拟远程计算机控制。
刀型闸阀的适用范围刀型闸阀适用于矿山电厂的选煤、排渣、城市污水处理、食品、造纸、医药、石油、化工等油品、水、蒸汽管路上,接通或截断管路中的水泥浆、金矿粉、矿砂、炉渣、煤泥、纸浆、木浆、尾矿、纤维、粉尘、化学品处理污水、沉淀池、沥青、料仓出口、水果、谷物、屠宰厂废水等介质。1.可提升的闸板密封面,可刮除密封面上的粘着物,自动清除杂物。2.不锈钢闸板可防止腐蚀引起的密封泄漏,精磨抛光处理可获得更好的密封效果。刀板底端加工成刀刃状,对松软物料如纤维、纸浆、木浆具有切断功能,同时有良好开启和关闭作用。在刀板上端安装有硬聚四氟乙烯刮泥器,可防止粉尘、砂砾等擦伤性物质进入填料盒,可显著提高刀板寿命。3.不锈钢阀体坚久耐用,阀体加强筋设计提高阀体强度,双头螺使用启闭更为迅速。4.整体的不锈钢材质,可防止腐蚀破坏。阀体、填料涵均为精密铸造,其中阀体采用凸缘式整体铸造,材质可根据用户需要选用304、316、316L、WCB、2Crl3,密封圈采用PTFE增强聚四氟乙烯材质,耐腐蚀、耐磨损、不沾渣。5. 全圆形的直流通道设计不存渣、不卡阻。6.科学的上密封填料函设计,使上密封安全有效,经久耐用。7.短结构长度,可节省原料,安装空间,也有效支持管道强度。8.三角形的支架节省原材料,保证需要的力学性能。9.刀型闸阀阀体上的导向块使闸板正确运动。挤压块保证闸板有效密封。10.刀型闸阀还可任意选用驱动机构。11. V型闸板可作为调节阀使用。12.设计紧凑、占据空间小、重量轻、价格便宜、易于安装、耐磨防堵措施完善、便于维修、使用方便及寿命长,并且可任意选用驱动装置。13.阀板有5个支撑点,使阀板有很好的自对中。当阀门处于关闭状态,并承受背压时,阀板不发生偏移。
稳定可靠的硬件,始终如一 | 人性化操作软件,易懂易用 |
良好的扩展功能,高瞻远瞩 | 低使用成本设计,经济实用 |
分光系统 凹面全息离子刻蚀光栅 光栅焦距600mm 光栅刻线数2400条/mm 检测波长范围120-800nm | 光源系统 激发电压500V/300V软件设置自动转换 6种激发光源 放电参数可根据不同分析要求调节 水平氩气保护发光台 |
数据处理系统及分析软件 外置式品牌计算机及打印机 Windows操作系统 易于操作的PDA-Win分析软件包 数据管理功能 分析情报保护功能 | 电源和环境要求 220V±10%,50/60Hz,最大功率4KVA 单独地线<30Ω(干燥地区<10Ω) 温度10-30℃(每小时变化<5℃) 湿度 80%以下 重量约500kg,尺寸W1550×D620×H253 |
※外观及规格如有变动,恕不另行通知。
Segments LCD, VA High contrast LCD pannel, Black mask high contrast
1) Displa type: TN. HTN2) Driving Method: 1/4 Duty, 1/3 Bias, (or MORE)3) Polarizer type: Transmissive4) LCD Operating Voltage: 4.5 V(ref. )5) Logic voltage(VDD): 3.0 V (or others)6) Viewing Direction: 6 O'Clock (or 12 O'Clock)7) Operating Temperature: -20 C TO +70 C or more breadth8) Storage Temperatre: -30 C TO +80 C9) Driving IC: User-defined10) Backlight: WHITE (or others)
技术参数 | ||
用于印刷电路板,包括精细脚距、表面装配、TAB及BGA技术。 放大倍数: 7-40X连续变倍,放大倍数达120X 变焦比: 6.6:1 工作距离: 根据放大倍率,25mm-312mm 视野: 根据放大倍数的不同,1.75mm-77mm 直接角度检测/34度角度检测/360度旋转检测 托板面积:310X310检测面积:300X250 大型托板:460X250检测面积:450X250 | ||
主要特点 | ||
专利的Dynascope焦外立体变焦镜头提供26.4度的视野角,使观察者舒适自如 直视检测/斜视检测/旋转检测 防静电移动平台,固定双面PCB托盘,防护挡板 垂直或十字形测量线 可外接视频输出,可接数码相机、监视器、电脑等 提高操作员效率 改善故障检测 降低废品率 的分辨率和对比率 高放大倍数 可切换角度观测 佩戴眼镜、隐形眼镜的同时仍可舒适使用 | ||
| ||
为融合视觉工程的PCB检测技术及诸多专利的版系统 专业用于印刷电路板行业,涉及Fine Pitch,SMT,TAB,BGA等技术领域 提高工作产量及检测效率,增强非合格品的检测,大大降低次品率 超强的分辨率及对比度和高大倍率提供最真实的显微影象 适用于直接/角度/旋转角度检测及双面PCB的焊接检测 的人机工程学设计使配戴眼镜的操作者舒适的观察工件 |
品牌 | NSK轴承 | 型号 | 7002CTYNSULP4 |
类型 | 角接触球轴承 | 内径 | 15(mm) |
外径 | 32(mm) | 厚度 | 9(mm) |
密封防尘形式 | K30 | 保持架及其材料 | F1碳钢 |
载荷方向 | 向心 | 滚动体类型 | 球 |
滚动体列数 | 单列 | 滚道类型 | 直线滚道 |
用途 | 通用 | 体积规格 | 微型 D≤26 |
使用特性 | 高温 | 是否标准件 | 标准件 |
是否进口 | 进口 | 样品或现货 | 现货 |
NSK轴承,7002CTYNSULP4,7002CTYNDULP4轴承,青岛瑞精机电现货
NSK轴承,7002CTYNSULP4,7002CTYNDULP4轴承,青岛瑞精机电现货
NSK轴承,7002CTYNSULP4,7002CTYNDULP4轴承,青岛瑞精机电现货
青岛瑞精机电设备有限公司作为华北地区权威的进口轴承供应商,专业为您提供进口轴承销售服务。专业经营名优进口轴承,包括瑞典SKF轴承、德国FAG轴承、INA、日本NSK轴承、NTN轴承、KOYO轴承、美国TIMEKN轴承等。我公司还经销瓦房店轴承(ZWZ),哈尔滨轴承(HRB),洛阳轴承(LYC)等国产轴承。同时我们还提供英制(非标)轴承,可根据客户的实际需求来定制, 以解决客户的燃眉之急。青岛瑞精机电设备有限公司自成立以来,以“诚信、团结、务实、创新”作为企业精神,坚持“人才、成果、质量、管理”的企业经营目标,以的技术、稳定的产品质量、周到的服务,发展主营业务,发挥自身的技术优势、产品优势和市场优势,为用户提供机械装备配套轴承及相关系列产品,是国内专业的轴承销售公司。
瑞精轴承将坚持“的质量就是明天的市场,客户的满意就是我们的追求”之经营理念,本着以“科技求发展、质量创品牌”的方针,以的产品、合理的价位赢得客户,同时把良好的利益留给客户,把长远的利益留给合作伙伴。热忱欢迎广大客户前来光临指导、洽谈业务!把握世界商机,与您携手共进,共创辉煌。我们对每一套轴承负责,对每一位客户服务,欢迎致电青岛瑞精机电设备有限公司。主营品牌:SKF,NSK,NTN,KOYO,NACHI,FAG,TIMKEN,INA
兼营国产:HRB,ZWZ,LYC ,NXZ,TMB公司网址:http://www.nskfag.org电子邮箱:sales@nskfag.org联系电话:传真:在线QQ:1304518559联系人:朱先生
[url=http://www.nskfag.org]进口轴承[/url][url=http://www.nskfag.org/brand/skf.html]SKF轴承[/url][url=http://www.nskfag.org/brand/nsk.html]NSK轴承[/url][url=http://www.nskfag.org/brand/fag.html]FAG轴承[/url][url=http://www.nskfag.org/brand/iko.html]IKO轴承[/url][url=http://www.nskfag.org/brand/timken.html]timken轴承[/url][url=http://www.nskfag.org/brand/nachi.html]nachi轴承[/url][url=http://www.nskfag.org/brand/ntn.html]NTN轴承[/url][url=http://www.nskfag.org/brand/ina.html]INA轴承[/url][url=http://www.nskfag.org/brand/koyo.html]KOYO轴承[/url]
<a href=http://www.nskfag.org/>进口轴承</a><a href=http://www.nskfag.org/brand/skf.html>SKF轴承</a><a href=http://www.nskfag.org/brand/NSK.html>NSK轴承</a><a href=http://www.nskfag.org/brand/FAG.html>FAG轴承</a><a href=http://www.nskfag.org/brand/timken.html>TIMKEN轴承</a><a href=http://www.nskfag.org/brand/INA.html>INA轴承</a> <a href=http://www.nskfag.org/brand/nachi.html>nachi轴承</a>