bosch rexroth Supplier & Factory
Shop ledlightportal.com for the best prices on bosch rexroth from China,India, USA, Turkey,Philips, Toshiba and more!bosch rexroth Replacements available!Ledlightportal.com is one of the leading bosch rexroth Industry B2B Marketplace that helps bosch rexroth buyers to instantly connect with high quality bosch rexroth suppliers from all over the world including bosch rexroth.
Bosch ReXroth ABZSS,ABSBG,SV, non return valve,Z1S
R900713427 ABSBG/B 4,0 /SS10/U /330/EG24NK4CM/C R900012380 CONNECTING PIECE AB20/11/M 1/2 0531012740 HAB1/330/3X/10G05G/2N111/BA R900028276 THERMOSTAT,AB31/14/7/1A2A3A/TAZ6 R900009090 SCREW JOINT,AB20/11/K1,G1/4 R900711415 ABZSS 20 M/3X/330E/S13V R900543908 LOCK,AB40/19/324A/AL/M/6
[catalog]: Butterfly Valve » Turbine Drive Hard Sealed Flange Type Butterfly Valves[keywords]:bosch rexroth abzss,non return valve
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Bosch ReXroth accumulator ,KAV,SV, non return valve,DA,
R900713427 ABSBG/B 4,0 /SS10/U /330/EG24NK4CM/C R900012380 CONNECTING PIECE AB20/11/M 1/2 0531012740 HAB1/330/3X/10G05G/2N111/BA R900028276 THERMOSTAT,AB31/14/7/1A2A3A/TAZ6 R900009090 SCREW JOINT,AB20/11/K1,G1/4 R900711415 ABZSS 20 M/3X/330E/S13V R900543908 LOCK,AB40/19/324A/AL/M/6 R901025460 ABZFD/S0400/10N/400/1X/M/DIN R901126098 ABZMS/36
[catalog]: Butterfly Valve » Turbine Drive Hard Sealed Flange Type Butterfly Valves[keywords]:bosch rexroth,kav sv
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Bosch ReXroth accumulator,ABZSS, stop valve ,DA,,Z2S, throttle valve
Bosch ReXroth accumulator,ABZSS, stop valve ,DA,,Z2S, throttle valve
[catalog]: Butterfly Valve » Turbine Drive Hard Sealed Flange Type Butterfly Valves[keywords]:bosch rexroth,accumulator abzss,stop valve
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Bosch ReXroth ball valve, hydraulic valve, cylinder, plunger pump
Pressure valve ZDR6DP2/4X/75YM in stock Pressure valve ZDR6DP2/4X/150YM in stock Pressure valve ZDR6DP2/4X/210YM in stock Pressure valve ZDR10DP2/5X/150YM in stock non return valve Z2FS10/5/3X/ in stock non return valve Z2FS6/2/4X/2QV in stock non return valve Z2S10/1/3X in stock non return valve Z2S6/1/6X in stock
[catalog]: Ball Valve » Track Lorry Ball Valve[keywords]:bosch rexroth ball,hydraulic valve,plunger pump
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Bosch ReXroth filter element,constant delivery pump,cartridge valve,ch
Pressure valve ZDR6DP2/4X/75YM in stock Pressure valve ZDR6DP2/4X/150YM in stock Pressure valve ZDR6DP2/4X/210YM in stock Pressure valve ZDR10DP2/5X/150YM in stock non return valve Z2FS10/5/3X/ in stock non return valve Z2FS6/2/4X/2QV in stock non return valve Z2S10/1/3X in stock non return valve Z2S6/1/6X in stock
[catalog]: Butterfly Valve » Turbine Drive Hard Sealed Flange Type Butterfly Valves[keywords]:bosch rexroth,filter element
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Bosch ReXroth hydraulic non return valve,AB, accumulator ,M/SR, non re
R900713427 ABSBG/B 4,0 /SS10/U /330/EG24NK4CM/C R900012380 CONNECTING PIECE AB20/11/M 1/2 0531012740 HAB1/330/3X/10G05G/2N111/BA R900028276 THERMOSTAT,AB31/14/7/1A2A3A/TAZ6 R900009090 SCREW JOINT,AB20/11/K1,G1/4 R900711415 ABZSS 20 M/3X/330E/S13V R900543908 LOCK,AB40/19/324A/AL/M/6
[catalog]: Butterfly Valve » Turbine Drive Hard Sealed Flange Type Butterfly Valves[keywords]:bosch rexroth hydraulic,non return valve
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Bosch ReXroth hydraulic pump, hydraulic motor, proportional valve, amp
Pressure valve ZDR6DP2/4X/75YM in stock Pressure valve ZDR6DP2/4X/150YM in stock Pressure valve ZDR6DP2/4X/210YM in stock Pressure valve ZDR10DP2/5X/150YM in stock non return valve Z2FS10/5/3X/ in stock non return valve Z2FS6/2/4X/2QV in stock non return valve Z2S10/1/3X in stock non return valve Z2S6/1/6X in stock
[catalog]: Butterfly Valve » Turbine Drive Hard Sealed Flange Type Butterfly Valves[keywords]:bosch rexroth,hydraulic pump,hydraulic motor
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Bosch ReXroth Magnetic valve, servo valve, non return valve,slide bloc
Pressure valve ZDR6DP2/4X/75YM in stock Pressure valve ZDR6DP2/4X/150YM in stock Pressure valve ZDR6DP2/4X/210YM in stock Pressure valve ZDR10DP2/5X/150YM in stock non return valve Z2FS10/5/3X/ in stock non return valve Z2FS6/2/4X/2QV in stock non return valve Z2S10/1/3X in stock non return valve Z2S6/1/6X in stock
[catalog]:Angle Valve » Electric Magnetic Angle Valve[keywords]:bosch rexroth,magnetic valve,servo valve
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Bosch ReXroth non return valve,SV, non return valve,Z1S
R900713427 ABSBG/B 4,0 /SS10/U /330/EG24NK4CM/C R900012380 CONNECTING PIECE AB20/11/M 1/2 0531012740 HAB1/330/3X/10G05G/2N111/BA R900028276 THERMOSTAT,AB31/14/7/1A2A3A/TAZ6 R900009090 SCREW JOINT,AB20/11/K1,G1/4 R900711415 ABZSS 20 M/3X/330E/S13V R900543908 LOCK,AB40/19/324A/AL/M/6
[catalog]: Butterfly Valve » Turbine Drive Hard Sealed Flange Type Butterfly Valves[keywords]:bosch rexroth,non return valve,non return valve
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Bosch ReXroth oil cylinder,filter, throttle valve, variable pump,wire
ure valve ZDR6DP2/4X/75YM in stock Pressure valve ZDR6DP2/4X/150YM in stock Pressure valve ZDR6DP2/4X/210YM in stock Pressure valve ZDR10DP2/5X/150YM in stock non return valve Z2FS10/5/3X/ in stock non return valve Z2FS6/2/4X/2QV in stock non return valve Z2S10/1/3X in stock non return valve Z2S6/1/6X in stock
[catalog]: Balance Valve » Copper Wire Mouth Balance Valve[keywords]:bosch rexroth,plunger motor
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Bosch ReXroth plunger motor, pressure valve,electric motor, reducing g
Pressure valve ZDR6DP2/4X/75YM in stock Pressure valve ZDR6DP2/4X/150YM in stock Pressure valve ZDR6DP2/4X/210YM in stock Pressure valve ZDR10DP2/5X/150YM in stock non return valve Z2FS10/5/3X/ in stock non return valve Z2FS6/2/4X/2QV in stock non return valve Z2S10/1/3X in stock non return valve Z2S6/1/6X in stock
[catalog]: Adjusting Valve » Self-actuated Pressure Adjusting Valve[keywords]:bosch rexroth,plunger motor,pressure valve
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Bosch ReXroth pressure stop valve ,Z2S, throttle valve,SV,
R900713427 ABSBG/B 4,0 /SS10/U /330/EG24NK4CM/C R900012380 CONNECTING PIECE AB20/11/M 1/2 0531012740 HAB1/330/3X/10G05G/2N111/BA R900028276 THERMOSTAT,AB31/14/7/1A2A3A/TAZ6 R900009090 SCREW JOINT,AB20/11/K1,G1/4 R900711415 ABZSS 20 M/3X/330E/S13V R900543908 LOCK,AB40/19/324A/AL/M/6 R901025460 ABZFD/S0400/10N/400/1X/M/DIN R901126098 ABZMS/36
[catalog]: Adjusting Valve » Self-actuated Pressure Adjusting Valve[keywords]:bosch rexroth,pressure stop valve
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Bosch ReXroth pressure stop valve ,Z2SRK,M/SR
R900713427 ABSBG/B 4,0 /SS10/U /330/EG24NK4CM/C R900012380 CONNECTING PIECE AB20/11/M 1/2 0531012740 HAB1/330/3X/10G05G/2N111/BA R900028276 THERMOSTAT,AB31/14/7/1A2A3A/TAZ6 R900009090 SCREW JOINT,AB20/11/K1,G1/4 R900711415 ABZSS 20 M/3X/330E/S13V R900543908 LOCK,AB40/19/324A/AL/M/6 R901025460 ABZFD/S0400/10N/400/1X/M/DIN R901126098 ABZMS/36
[catalog]: Adjusting Valve » Self-actuated Pressure Adjusting Valve[keywords]:bosch rexroth,pressure stop valve
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Bosch ReXroth relief valve, oil seal, driver,accumulator
Pressure valve ZDR6DP2/4X/75YM in stock Pressure valve ZDR6DP2/4X/150YM in stock Pressure valve ZDR6DP2/4X/210YM in stock Pressure valve ZDR10DP2/5X/150YM in stock non return valve Z2FS10/5/3X/ in stock non return valve Z2FS6/2/4X/2QV in stock non return valve Z2S10/1/3X in stock non return valve Z2S6/1/6X in stock
[catalog]: Butterfly Valve » Turbine Drive Air Butterfly Valve[keywords]:bosch rexroth,relief valve,oil seal
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Bosch ReXroth stop valve ,AB, accumulator ,M/SR
R900713427 ABSBG/B 4,0 /SS10/U /330/EG24NK4CM/C R900012380 CONNECTING PIECE AB20/11/M 1/2 0531012740 HAB1/330/3X/10G05G/2N111/BA R900028276 THERMOSTAT,AB31/14/7/1A2A3A/TAZ6 R900009090 SCREW JOINT,AB20/11/K1,G1/4 R900711415 ABZSS 20 M/3X/330E/S13V R900543908 LOCK,AB40/19/324A/AL/M/6 R901025460 ABZFD/S0400/10N/400/1X/M/DIN
[catalog]: Butterfly Valve » Turbine Drive Hard Sealed Flange Type Butterfly Valves[keywords]:bosch rexroth,stop valve,accumulator m/sr
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Bosch ReXroth stop valve ,KAV, pressure stop valve ,DA
R900713427 ABSBG/B 4,0 /SS10/U /330/EG24NK4CM/C R900012380 CONNECTING PIECE AB20/11/M 1/2 0531012740 HAB1/330/3X/10G05G/2N111/BA R900028276 THERMOSTAT,AB31/14/7/1A2A3A/TAZ6 R900009090 SCREW JOINT,AB20/11/K1,G1/4 R900711415 ABZSS 20 M/3X/330E/S13V R900543908 LOCK,AB40/19/324A/AL/M/6
[catalog]: Adjusting Valve » Self-actuated Pressure Adjusting Valve[keywords]:bosch rexroth,stop valve,pressure stop valve
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Bosch ReXroth stop valve ,Z1S,DA,pressure stop valve ,SV, SL
Bosch ReXroth stop valve ,Z1S,DA,pressure stop valve ,SV, SL
[catalog]: Adjusting Valve » Self-actuated Pressure Adjusting Valve[keywords]:bosch rexroth,stop valve,pressure stop valve
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Bosch ReXroth stop valve ,Z1S,Z2S, throttle valve
R900713427 ABSBG/B 4,0 /SS10/U /330/EG24NK4CM/C R900012380 CONNECTING PIECE AB20/11/M 1/2 0531012740 HAB1/330/3X/10G05G/2N111/BA R900028276 THERMOSTAT,AB31/14/7/1A2A3A/TAZ6 R900009090 SCREW JOINT,AB20/11/K1,G1/4 R900711415 ABZSS 20 M/3X/330E/S13V R900543908 LOCK,AB40/19/324A/AL/M/6 R901025460 ABZFD/S0400/10N/400/1X/M/DIN R901126098 ABZMS/36
[catalog]: Butterfly Valve » Turbine Drive Hard Sealed Flange Type Butterfly Valves[keywords]:bosch rexroth,stop valve
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Bosch ReXroth stop valve, stop valve ,DA,KAV,
R900713427 ABSBG/B 4,0 /SS10/U /330/EG24NK4CM/C R900012380 CONNECTING PIECE AB20/11/M 1/2 0531012740 HAB1/330/3X/10G05G/2N111/BA R900028276 THERMOSTAT,AB31/14/7/1A2A3A/TAZ6 R900009090 SCREW JOINT,AB20/11/K1,G1/4 R900711415 ABZSS 20 M/3X/330E/S13V R900543908 LOCK,AB40/19/324A/AL/M/6
[catalog]: Butterfly Valve » Turbine Drive Hard Sealed Flange Type Butterfly Valves[keywords]:bosch rexroth,stop valve
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Bosch ReXroth stop valve, Z2S,ABSBG
R900713427 ABSBG/B 4,0 /SS10/U /330/EG24NK4CM/C R900012380 CONNECTING PIECE AB20/11/M 1/2 0531012740 HAB1/330/3X/10G05G/2N111/BA R900028276 THERMOSTAT,AB31/14/7/1A2A3A/TAZ6 R900009090 SCREW JOINT,AB20/11/K1,G1/4 R900711415 ABZSS 20 M/3X/330E/S13V R900543908 LOCK,AB40/19/324A/AL/M/6
[catalog]: Butterfly Valve » Turbine Drive Hard Sealed Flange Type Butterfly Valves[keywords]:bosch rexroth,stop valve,z2s absbg
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Bosch ReXroth stop valve,Z1S,S,M/SR
R900713427 ABSBG/B 4,0 /SS10/U /330/EG24NK4CM/C R900012380 CONNECTING PIECE AB20/11/M 1/2 0531012740 HAB1/330/3X/10G05G/2N111/BA R900028276 THERMOSTAT,AB31/14/7/1A2A3A/TAZ6 R900009090 SCREW JOINT,AB20/11/K1,G1/4 R900711415 ABZSS 20 M/3X/330E/S13V R900543908 LOCK,AB40/19/324A/AL/M/6 R901025460 ABZFD/S0400/10N/400/1X/M/DIN R901126098 ABZMS/36
[catalog]: Butterfly Valve » Turbine Drive Hard Sealed Flange Type Butterfly Valves[keywords]:bosch rexroth,stop valve
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Bosch ReXroth SV and SL,stop valve, DA,KAV, accumulator
R900713427 ABSBG/B 4,0 /SS10/U /330/EG24NK4CM/C R900012380 CONNECTING PIECE AB20/11/M 1/2 0531012740 HAB1/330/3X/10G05G/2N111/BA R900028276 THERMOSTAT,AB31/14/7/1A2A3A/TAZ6 R900009090 SCREW JOINT,AB20/11/K1,G1/4 R900711415 ABZSS 20 M/3X/330E/S13V
[catalog]: Butterfly Valve » Turbine Drive Hard Sealed Flange Type Butterfly Valves[keywords]:bosch rexroth,sv and sl,da kav
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Bosch ReXroth treble pump,overlay non return valve,encoder
Pressure valve ZDR6DP2/4X/75YM in stock Pressure valve ZDR6DP2/4X/150YM in stock Pressure valve ZDR6DP2/4X/210YM in stock Pressure valve ZDR10DP2/5X/150YM in stock non return valve Z2FS10/5/3X/ in stock non return valve Z2FS6/2/4X/2QV in stock non return valve Z2S10/1/3X in stock non return valve Z2S6/1/6X in stock
[catalog]: Butterfly Valve » Turbine Drive Hard Sealed Flange Type Butterfly Valves[keywords]:bosch rexroth,treble pump
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Bosch ReXroth variable plunger pump, reversing valve, balanced valve
Pressure valve ZDR6DP2/4X/75YM in stock Pressure valve ZDR6DP2/4X/150YM in stock Pressure valve ZDR6DP2/4X/210YM in stock Pressure valve ZDR10DP2/5X/150YM in stock non return valve Z2FS10/5/3X/ in stock non return valve Z2FS6/2/4X/2QV in stock non return valve Z2S10/1/3X in stock non return valve Z2S6/1/6X in stock
[catalog]: Adjusting Valve » Dynamic Balance Adjusting Valve[keywords]:bosch rexroth,plunger pump,reversing valve
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Sales Bosch ReXroth non return valve Z2S
Pressure valve ZDR6DP2/4X/75YM in stock Pressure valve ZDR6DP2/4X/150YM in stock Pressure valve ZDR6DP2/4X/210YM in stock Pressure valve ZDR10DP2/5X/150YM in stock non return valve Z2FS10/5/3X/ in stock non return valve Z2FS6/2/4X/2QV in stock non return valve Z2S10/1/3X in stock non return valve Z2S6/1/6X in stock
[catalog]: Butterfly Valve » Turbine Drive Hard Sealed Flange Type Butterfly Valves[keywords]:bosch rexroth,non return valve
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Sales Bosch ReXroth reversing valve 4WEH16J7X
Pressure valve ZDR6DP2/4X/75YM in stock Pressure valve ZDR6DP2/4X/150YM in stock Pressure valve ZDR6DP2/4X/210YM in stock Pressure valve ZDR10DP2/5X/150YM in stock non return valve Z2FS10/5/3X/ in stock non return valve Z2FS6/2/4X/2QV in stock non return valve Z2S10/1/3X in stock non return valve Z2S6/1/6X in stock
[catalog]: Butterfly Valve » Turbine Drive Hard Sealed Flange Type Butterfly Valves[keywords]:bosch rexroth,reversing valve
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Bosch ReXroth stop valve ,KAV, pressure stop valve ,DA
R900713427 ABSBG/B 4,0 /SS10/U /330/EG24NK4CM/C R900012380 CONNECTING PIECE AB20/11/M 1/2 0531012740 HAB1/330/3X/10G05G/2N111/BA R900028276 THERMOSTAT,AB31/14/7/1A2A3A/TAZ6 R900009090 SCREW JOINT,AB20/11/K1,G1/4 R900711415 ABZSS 20 M/3X/330E/S13V R900543908 LOCK,AB40/19/324A/AL/M/6
[catalog]: Adjusting Valve » Self-actuated Pressure Adjusting Valve[keywords]:bosch rexroth,stop valve,pressure stop valve
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Bosch ReXroth stop valve ,Z1S,DA,pressure stop valve ,SV, SL
Bosch ReXroth stop valve ,Z1S,DA,pressure stop valve ,SV, SL
[catalog]: Adjusting Valve » Self-actuated Pressure Adjusting Valve[keywords]:bosch rexroth,stop valve,pressure stop valve
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Bosch ReXroth stop valve ,Z1S,Z2S, throttle valve
R900713427 ABSBG/B 4,0 /SS10/U /330/EG24NK4CM/C R900012380 CONNECTING PIECE AB20/11/M 1/2 0531012740 HAB1/330/3X/10G05G/2N111/BA R900028276 THERMOSTAT,AB31/14/7/1A2A3A/TAZ6 R900009090 SCREW JOINT,AB20/11/K1,G1/4 R900711415 ABZSS 20 M/3X/330E/S13V R900543908 LOCK,AB40/19/324A/AL/M/6 R901025460 ABZFD/S0400/10N/400/1X/M/DIN R901126098 ABZMS/36
[catalog]: Butterfly Valve » Turbine Drive Hard Sealed Flange Type Butterfly Valves[keywords]:bosch rexroth,stop valve
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
Bosch ReXroth stop valve, stop valve ,DA,KAV,
R900713427 ABSBG/B 4,0 /SS10/U /330/EG24NK4CM/C R900012380 CONNECTING PIECE AB20/11/M 1/2 0531012740 HAB1/330/3X/10G05G/2N111/BA R900028276 THERMOSTAT,AB31/14/7/1A2A3A/TAZ6 R900009090 SCREW JOINT,AB20/11/K1,G1/4 R900711415 ABZSS 20 M/3X/330E/S13V R900543908 LOCK,AB40/19/324A/AL/M/6
[catalog]: Butterfly Valve » Turbine Drive Hard Sealed Flange Type Butterfly Valves[keywords]:bosch rexroth,stop valve
QINHUANGDAO BEIFANG MARINE PARTS&MACHINERY IMP.&EXP.CO.,LTD.
[Beijing China]
- API Single-Disc Swing Wafer Check Valve
- API/Jis Swing Check Valve
- Back-Flow Safety Valve
- Back-Flow Safety Valve
- Cast Steel Swing Check Valve
- Check Valve
- Double Disc Wafer Check Valve
- Double Spring Type Safety Valve
- High Temperature and High Pressure Safety Valve
- Integrated Lug Type Double-Disc Swing Check Valve