首页 产品 新闻 介绍 留言

原装REXROTH气动阀R412007456

产品信息

产品详细

原装REXROTH气动阀R412007456 德国博世力士乐优异商品 低价销售 特价现货 优异供应 全国联保 欢迎来电咨询

我公司有经验代理博世力士乐(BOSCH-REXROTH)、阿托斯ATOS、派克Parker、迪普马DUPLOMATIC、油研YUKEN;本特利bentley、贝加莱B&R、西门子、光洋KOYO,美国ASCO,美国PARKER派克 等系列进口产品 

铝业网图片

原装REXROTH气动阀R412007456  气动阀:是一种直角回转结构,它与阀门定位设备配套使用,可实现比例调节; 气动阀较适用于各种调节场合,具有额定流量系数大,可调比大,密封效果好,调节性能灵敏,体积小,可竖卧安装。适用于控制气体、蒸汽、液体等介质。

该阀中的固定节流孔尺寸按设备的发动机较佳速度所需流量确定。若发动机速度超出此较佳范围,则节流小孔压降将增加,从而将卸载阀移位至小流量位置。因此大流量泵相邻的元件做成可对非常大流量节流的尺寸,故此回路能耗少、工作平稳且成本低

 

气动阀是一种气控液压阀,它用于泵进油节流,当设备的液压空载时,仅使较小流量(〈 18.9t/min)通过泵;而在有负载时,全流量吸入泵。如图10所示,这种回路可省去泵与原动机间的离合器,从而降低了成本,还减小了空载功耗,因通过回路的较小流量保持了设备的原动机功率。另外,还降低了泵在空载时的噪声。干式吸油阀回路可用于由内燃机驱动的任何车辆中开关式液压系统,例如垃圾装填卡车及工业设备。

德国力士乐rexroth电磁换向阀 博世比例阀电磁阀 力士乐流量控制阀 力士乐溢流阀 力士乐节流阀 力士乐截止阀 力士乐安全阀 力士乐比例阀 力士乐安全阀 力士乐液压阀 力士乐换向阀
R901164539 4WE6J6X/EG24N9K4QS0G24W
R901163578 4WE6M73A6X/EG24N9K4/VSO9
R901138644 4WE6W6X/EG24N9K4/Z
R901112537 4WE6GA6X/EG24N9K4/ZV
R901105603 4WE6X197A6X/EG24N9K4/A12V
R901093505 4WE6E6X/EG24N9K4/ZV
R901078320 4WE6M73A6X/EG24N9K4/A12V
R901068637 3WE6A6X/EG24N9K4/ZV
R901068636 3WE6B6X/EG24N9K4/ZV
R901068582 4WE6Y6X/EG24N9K4/ZV
R901068579 4WE6J6X/EG24N9K4/ZV
R900619895 4WE6Y2-6X/EG24N9K4/V
R900619064 4WE6X10B6X/EG24N9K4
R900617883 4WE6X91B6X/EG24N9K4
R900617768 4WE6JA6X/EG24N9K4SO407
R900617193 4WE6X36-6X/EG24N9K4
R900616979 4WE6EB6X/EG24N9K4QM0G24
R900616418 4WE6X75-6X/EG24N9K4
R900616416 4WE6E10-6X/EG24N9K4
R900608694 4WE6J6X/EG24N9K4QSABG24S
R900578636 4WE6U32-6X/EG24N9K4
R900578186 4WE6UA6X/EG24N9K4
R900578128 4WE6G3-6X/EG24N9K4
R900577475 4WE6M6X/EG24N9K4
R900577472 4WE6D9-6X/EG24N9K4
R900577367 4WE6MB6X/EG24N9K4
R900577260 3WE6B6X/EG24N9K4/T12
R900576515 4WE6C6X/EG24N9K4SO9
R900574017 4WE6J6X/EG24N9K4SO9
R900572842 4WE6J2-6X/EG24N9K4
R900572841 4WE6X38-6X/EG24N9K4/T06SO9
R900572840 4WE6X139-6X/EG24N9K4SO9
R900572839 3WE6B73-6X/EG24N9K4/A12
R900572838 3WE6B4-6X/EG24N9K4/T06SO9
R900572786 4WE6U18-6X/EG24N9K4/T06
R900572785 4WE6U6X/EG24N9K4
R900572784 4WE6R6X/EG24N9K4/T06
R900572783 4WE6G73-6X/EG24N9K4/A12
R900572779 4WE6E13-6X/EG24N9K4
R900572778 4WE6X20-6X/EG24N9K4
R900572777 4WE6D73-6X/EG24N9K4/A12SO9
R900572775 3WE6A4-6X/EG24N9K4/T06
R900572738 4WE6E67-6X/EG24N9K4/T06
R900572193 4WE6E67A6X/EG24N9K4/T06
R900572186 4WE6Y73-6X/EG24N9K4/A12
R900571673 4WE6J3-6X/EG24N9K4
R900571012 4WE6R6X/EG24N9K4
R900570133 4WE6D6X/EG24N9K4/B08
R900568233 4WE6W6X/EG24N9K4
R900567997 4WE6J73-6X/EG24N9K4/A12
R900567535 4WE6C6X/EG24N9K4/A12
R900567271 4WE6J6X/EG24N9K4/A12
R900567269 4WE6W73-6X/EG24N9K4/A12
R900567095 4WE6E73-6X/EG24N9K4/A12
R900565479 4WE6J6X/EG24N9K4SO407
R900564105 4WE6D6X/EG24N9K4/V
R900561292 4WE6Q6X/EG24N9K4
R900561291 4WE6JB6X/EG24N9K4
R900561290 4WE6JA6X/EG24N9K4
R900561288 4WE6J6X/EG24N9K4
R900561286 4WE6H6X/EG24N9K4
R900561285 4WE6GB6X/EG24N9K4
R900561284 4WE6GA6X/EG24N9K4
R900561282 4WE6G6X/EG24N9K4
R900561281 4WE6EB6X/EG24N9K4
R900561280 4WE6EA6X/EG24N9K4
R900561278 4WE6E6X/EG24N9K4
R900561276 4WE6Y6X/EG24N9K4
R900561274 4WE6D6X/EG24N9K4
R900561272 4WE6C6X/EG24N9K4
R900561270 3WE6B6X/EG24N9K4
R900561180 3WE6A6X/EG24N9K4
R900559649 4WE6G6X/EG24N9K4SO9
R900557179 4WE6E19B6X/EG24N9K4
R900556323 4WE6J1-6X/EG24N9K4
R900555382 4WE6D19-6X/EG24N9K4
R900555068 4WE6E6X/EG24N9K4SO9
R900554557 4WE6JA6X/EG24N9K4/V
R900554556 4WE6HA6X/EG24N9K4/V
R900554041 3WE6B9-6X/EG24N9K4SO9
R900553670 4WE6HB6X/EG24N9K4
R900553273 4WE6J6X/EG24N9K4/B06
R900552440 4WE6C73-6X/EG24N9K4/A12
R900552338 4WE6WA6X/EG24N9K4
R900552009 4WE6G6X/EG24N9K4/V
R900551396 4WE6W5-6X/EG24N9K4
R900550284 4WE6H73A6X/EG24N9K4/A12
R900549641 4WE6D6X/EG24N9K4SO9
R900549534 4WE6HA6X/EG24N9K4
R900548772 4WE6J6X/EG24N9K4/V
R900548400 4WE6Q25-6X/EG24N9K4/A12
R900548271 4WE6J6X/EG24N9K4/B10
R900546939 4WE6MA6X/EG24N9K4
R900546678 3WE6B6X/EG24N9K4SO561
R900546257 4WE6D73-6X/EG24N9K4/A12
R901140934 4WE6E67-6X/EG24N9K4/T06VSO9
R901139569 4WE6M6X/EG24N9K4KSO21
R901137810 4WE6Y9-6X/EG24N9K45L
R901137809 4WE6D9-6X/EG24N9K45L
R901137802 4WE6D6X/EG24N9K4/A12V
R901136912 4WE6J9-6X/EG24N9K4/V
R901136909 4WE6W6X/EG24N9K4/B08
R901134370 4WE6E67-6X/EG24N9K4/B20T06
R901134364 4WE6J6X/EG24N9K4QSAG24E
R901133585 4WE6JA6X/EG24N9K4/B20
R901133584 4WE6E6X/EG24N9K4KSO21
R901133582 4WE6D6X/EG24N9K4KSO21
R901133581 4WE6J6X/EG24N9K4KSO21
R901133069 4WE6H6X/EG24N9K4/H10V
R901132803 4WE6D6X/EG24N9K4QMBG24/B12/62
R901132781 4WE6EB6X/EG24N9K4/B10
R901130812 4WE6J163-6X/EG24N9K4K/ZVSO21
R901130649 4WE6D6X/EG24N9K4/T12/62SO99
R901130538 3WE6A6X/EG24N9K4QSABG24S/B10
R901130521 4WE6EB6X/EG24N9K4/VSO9
R901130010 3WE6A6X/EG24N9K4/R12
R901129443 4WE6Y6X/EG24N9K4/ZVSO407
R901129199 4WE6EA6X/EG24N9K4/ZV
R901128988 4WE6F19B6X/EG24N9K4/ZV
R901128672 4WE6E67-6X/EG24N9K4/T06SO407
R901127943 4WE6GB6X/EG24N9K4/VSO407
R901127938 4WE6J6X/EG24N9K4/Z
R901125171 4WE6D73-6X/EG24N9K4SO407
R901123778 4WE6D6X/EG24N9K4/60
R901123776 3WE6A6X/EG24N9K4/60
R901122866 4WE6D25-6X/EG24N9K4/B05
R901119614 4WE6X43B6X/EG24N9K4
R901118191 4WE6EA6X/EG24N9K4/B06
R901116935 4WE6H6X/EG24N9K4QSBG24S
R901116367 4WE6RB6X/EG24N9K4/T06
R901115878 4WE6J73A6X/EG24N9K4
R901115768 4WE6J163-6X/EG24N9K4
R901115302 4WE6J5B6X/EG24N9K4/V
R901114479 4WE6X126-6X/EG24N9K4
R901114318 4WE6HA6X/EG24N9K4/ZV
R901113321 4WE6D6X/EG24N9K4/VSO582
R901112537 4WE6GA6X/EG24N9K4/ZV
R901112102 4WE6X7-6X/EG24N9K4/B08
R901110930 4WE6J3-6X/EG24N9K4/V
R901107967 3WE6B9-6X/EG24N9K4-86
R901106417 4WE6H19-6X/EG24N9K4/N10V
R901106171 4WE6G3-6X/EG24N9K4SO9
R901106143 4WE6E67-6X/EG24N9K4/T06ZV
R901105771 4WE6J3-6X/EG24N9K4/Z
R901105603 4WE6X197A6X/EG24N9K4/A12V
R901105544 4WE6D6X/EG24N9K45LSO407=AN
R901105543 4WE6J6X/EG24N9K45LSO407=AN
R901105209 4WE6J44-6X/EG24N9K4K
R901102871 4WE6H1B6X/EG24N9K4
R901101947 3WE6A6X/EG24N9K45L
R901101526 4WE6X178B6X/EG24N9K4
R901098482 4WE6H73A6X/EG24N9K4/V
R901098005 4WE6Y14-6X/EG24N9K4
R901097491 4WE6H73A6X/EG24N9K4/A12V
R901097277 4WE6F19-6X/EG24N9K4/ZV
R901097053 4WE6U6X/EG24N9K4/ZV
R901097046 4WE6G6X/EG24N9K4/ZV
R901097034 4WE6H6X/EG24N9K4/ZV
R901096761 4WE6W163-6X/EG24N9K4K/Z
R901096760 4WE6J6X/EG24N9K4QS0G24E
R901096483 4WE6E126B6X/EG24N9K4
R901096293 3WE6B9-6X/EG24N9K4QMBG24/62
R901095703 4WE6J2-6X/EG24N9K4SO407
R901095675 4WE6R6X/EG24N9K4/B12
R901095364 4WE6D6X/EG24N9K4003/B08
R901095150 4WE6Y13-6X/EG24N9K4
R901094862 4WE6L2-6X/EG24N9K4
R901093505 4WE6E6X/EG24N9K4/ZV
R901093449 4WE6E163-6X/EG24N9K4/ZV
R901093333 4WE6X7-6X/EG24N9K4/ZV
R901092683 3WE6B9-6X/EG24N9K4SO407
R901088262 4WE6H19-6X/EG24N9K4/N10
R901087582 4WE6Y6X/EG24N9K4/T06SO407
R901085570 4WE6E163-6X/EG24N9K4
R901085090 4WE6JA6X/EG24N9K45L
R901084710 4WE6E6X/EG24N9K4QSABG24S
R901082343 4WE6G6X/EG24N9K4QSABG24E
R901082232 4WE6D6-6X/EG24N9K4/V
R901081508 3WE6B6X/EG24N9K4/B25
R901081249 4WE6X19B6X/EG24N9K4
R901079031 4WE6EA6X/EG24N9K4QMAG24/B10
R901078320 4WE6M73A6X/EG24N9K4/A12V
R901077649 3WE6B73-6X/EG24N9K4/A12B10
R901077571 4WE6C6X/EG24N9K45L
R901077569 4WE6X190-6X/EG24N9K4
R901077165 4WE6Y3-6X/EG24N9K4
R901077029 4WE6G6X/EG24N9K4SO407
R901075538 4WE6MA6X/EG24N9K4QM0G24
R901075349 4WE6EB6X/EG24N9K4SO99
R901074083 4WE6H6X/EG24N9K4QS0G24S
R901072500 4WE6E41-6X/EG24N9K4/N15
R901072093 4WE6Y6X/EG24N9K45LSO407
R901069852 4WE6Y2-6X/EG24N9K4-86
R901068641 4WE6JA6X/EG24N9K4/ZV
R901068637 3WE6A6X/EG24N9K4/ZV
R901068636 3WE6B6X/EG24N9K4/ZV
R901068634 4WE6JB6X/EG24N9K4/ZV
R901068629 4WE6W6X/EG24N9K4/ZV
R901068622 4WE6D6X/EG24N9K4/ZVSO407
R901068596 4WE6D6X/EG24N9K4/Z
R901068595 4WE6D6X/EG24N9K4/ZV
R901068593 4WE6C6X/EG24N9K4/ZV
R901068587 4WE6Y6X/EG24N9K4/Z
R901068582 4WE6Y6X/EG24N9K4/ZV
R901068579 4WE6J6X/EG24N9K4/ZV
R901068571 4WE6G6X/EG24N9K4/Z
R901068072 4WE6C6X/EG24N9K4QMBG24/VSO407
R901067651 4WE6R6X/EG24N9K4SO407
R901066921 4WE6D6X/EG24N9K4SO194
R901063189 4WE6RB6X/EG24N9K4SO407
R901063014 4WE6HB6X/EG24N9K4/B18
R901062285 4WE6E40-6X/EG24N9K4
R901062280 4WE6E67-6X/EG24N9K4/B12T06
R901059440 4WE6H73B6X/EG24N9K4
R901058731 4WE6D6X/EG24N9K4/B14
R901056012 4WE6J50A6X/EG24N9K4003
R901053433 4WE6J6X/EG24N9K4QSAG24S
R901051287 4WE6J73-6X/EG24N9K4/A12=AN
R901048226 4WE6X14-6X/EG24N9K4
R901047112 4WE6MA6X/EG24N9K4SO407
R901042982 4WE6D6-6X/EG24N9K4/B08
R901042806 4WE6E6X/EG24N9K4QSAG24S
R901039规格 4WE6G6X/EG24N9K4QS0G24E
R901035811 4WE6J6X/EG24N9K4/V/60SO407
R901035808 4WE6D6X/EG24N9K4/V/60SO407
R901034070 4WE6T6X/EG24N9K4/V
R901033621 4WE6J9-6X/EG24N9K4QSBG24S
R901033094 4WE6X34-6X/EG24N9K4
R901032332 4WE6Q6X/EG24N9K45LSO407
R901032327 4WE6X5B6X/EG24N9K4
R901031745 4WE6HA6X/EG24N9K4/T06V
R901031266 4WE6D6X/EG24N9K4/B10SO9
R901026164 4WE6D6X/EG24N9K4/B08SO407
R901021711 4WE6EB6X/EG24N9K4/B30
R901020819 4WE6J6X/EG24N9K4003
R901020815 4WE6E6X/EG24N9K4003/B08
R901013271 4WE6U6X/EG24N9K4/B12
R901011802 4WE6MA6X/EG24N9K4K/V
R901011336 4WE6EB6X/EG24N9K45LSO407
R901009176 4WE6E6X/EG24N9K4QSABG24E
R901006893 4WE6D6X/EG24N9K45LSO407
R901003886 4WE6H73A6X/EG24N9K4/A12R20
R901002646 4WE6E6X/EG24N9K45LSO407
R901002644 4WE6J6X/EG24N9K45L
R901002641 4WE6Q6X/EG24N9K45L
R900979990 4WE6J19A6X/EG24N9K4/VSO9
R900979582 3WE6B6X/EG24N9K4/B08
R900979375 4WE6HA6X/EG24N9K4/B18
R900978930 4WE6E73A6X/EG24N9K4
R900978715 4WE6X47A6X/EG24N9K4
R900978423 4WE6D9-6X/EG24N9K4/N15
R900978226 4WE6D49-6X/EG24N9K4
R900978164 3WE6B6X/EG24N9K4/B20
R900977950 4WE6G11A6X/EG24N9K4
R900977922 4WE6JA6X/EG24N9K4/B08V
R900977898 4WE6H2A6X/EG24N9K4
R900977575 4WE6G6X/EG24N9K4/B12
R900977181 4WE6U73-6X/EG24N9K4/A12
R900976772 4WE6D6X/EG24N9K4/T06V
R900976213 3WE6B1-6X/EG24N9K4
R900976016 4WE6C6X/EG24N9K4/B15
R900975385 3WE6A6X/EG24N9K4/B25
R900975255 4WE6M6X/EG24N9K4/B08SO525
R900974951 4WE6D6X/EG24N9K4SO582
R900974845 4WE6H6X/EG24N9K4/B12V
R900973812 3WE6A6X/EG24N9K4SO9
R900973650 4WE6L1-6X/EG24N9K4
R900972692 4WE6J6X/EG24N9K4/B18
R900972435 4WE6FA6X/EG24N9K4
R900971742 4WE6J2-6X/EG24N9K4/V
R900970685 4WE6M73A6X/EG24N9K4/A12
R900969834 4WE6G6X/EG24N9K4/A12
R900969092 4WE6J6X/EG24N9K4/N12
R900968754 4WE6MA6X/EG24N9K4/V
R900967577 4WE6U10B6X/EG24N9K4QMBG24
R900967079 4WE6J21-6X/EG24N9K4
R900966531 4WE6J6X/EG24N9K4/B10SO524
R900966506 4WE6P8-6X/EG24N9K4
R900966452 4WE6U2-6X/EG24N9K4
R900966450 4WE6H73-6X/EG24N9K4/A12V
R900966425 4WE6J42-6X/EG24N9K4
R900965836 4WE6U12-6X/EG24N9K4/V
R900965834 4WE6Y6X/EG24N9K4/T06
R900965188 4WE6J9-6X/EG24N9K4
R900964907 4WE6J3A6X/EG24N9K4
R900964856 4WE6J6X/EG24N9K4/X12
R900964729 4WE6EB6X/EG24N9K4SO9
R900964237 4WE6E34-6X/EG24N9K4
R900963965 4WE6D6X/EG24N9K4/X08VSO407
R900963964 4WE6D6X/EG24N9K4/B08VSO407
R900963497 4WE6E6X/EG24N9K4-86
R900963236 4WE6E6X/EG24N9K4SO828
R900963121 4WE6Y4-6X/EG24N9K4/V
R900961795 3WE6A6X/EG24N9K4/B08
R900961268 4WE6E6X/EG24N9K4/T06V
R900961187 3WE6A6X/EG24N9K4/B22
R900960375 4WE6W73-6X/EG24N9K4
R900960021 4WE6D6X/EG24N9K4/R10
R900959843 4WE6S3-6X/EG24N9K4
R900959296 4WE6G3-6X/EG24N9K4/B08
R900959119 4WE6U3-6X/EG24N9K4
R900958908 4WE6C6X/EG24N9K4/B10
R900958007 4WE6EB6X/EG24N9K4/T06
R900957917 4WE6E6X/EG24N9K4/B10V
R900957915 4WE6L25-6X/EG24N9K4
R900957729 3WE6B9-6X/EG24N9K4/V
R900957244 4WE6D6X/EG24N9K4/B28V
R900957209 4WE6J2B6X/EG24N9K4
R900956946 4WE6X6-6X/EG24N9K4
R900956830 4WE6E67-6X/EG24N9K4/T06V
R900956746 4WE6C6X/EG24N9K4/VSO407
R900956715 4WE6E76-6X/EG24N9K4
R900956601 4WE6JA6X/EG24N9K4QM0G24
R900956597 4WE6X12-6X/EG24N9K4
R900956521 4WE6J5-6X/EG24N9K4
R900956520 4WE6D6X/EG24N9K4/B12V
R900956472 3WE6B6X/EG24N9K4/T06
R900955921 4WE6J73A6X/EG24N9K4/A12B20
R900955400 4WE6J46-6X/EG24N9K4
R900955202 4WE6TB6X/EG24N9K4
R900955201 4WE6X83A6X/EG24N9K4/V
R900955089 4WE6C6X/EG24N9K4/T06
R900954908 4WE6J6X/EG24N9K4/B12V
R900954863 4WE6X41-6X/EG24N9K4QMAG24
R900954637 4WE6C6X/EG24N9K4SO407
R900953936 4WE6GA6X/EG24N9K4SO407
R900953880 4WE6J19B6X/EG24N9K4
R900953709 4WE6Y6X/EG24N9K4/VSO407
R900953686 4WE6Q6X/EG24N9K4/A12
R900953521 4WE6J19A6X/EG24N9K4
R900953451 4WE6J44-6X/EG24N9K4
R900953437 4WE6J6X/EG24N9K4/B12SO256
R900953409 4WE6UA6X/EG24N9K4/V
R900953335 4WE6H19-6X/EG24N9K4
R900952804 4WE6Q21-6X/EG24N9K4/A12
R900952246 4WE6HB6X/EG24N9K4QMBG24
R900952241 4WE6E73-6X/EG24N9K4/A12V
R900951608 4WE6F6X/EG24N9K4/V
R900951215 4WE6U6X/EG24N9K4/T06
R900951144 4WE6JB6X/EG24N9K4/B12
R900950048 4WE6D6X/EG24N9K4/B18
R900950043 4WE6D6X/EG24N9K4SO293
R900949796 4WE6G6X/EG24N9K4/VSO407
R900949647 4WE6JA6X/EG24N9K4QMAG24
R900949065 4WE6JA6X/EG24N9K4/B10
R900948958 3WE6B6X/EG24N9K4/V
R900948851 4WE6H14-6X/EG24N9K4
力士乐Rexroth节流阀:REXROTH单向力士乐节流阀、力士乐6通经 10通经单向节流阀、力士乐(BOSCH_REXROTH)DR系列单向节流阀、力士乐(BOSCH-REXROTH)SV系列单向节流阀、力士乐Rexroth双单向节流阀、力士乐REXROTH叠加单向节流阀、力士乐Rexroth叠式节流阀、力士乐Rexroth液控节流阀Z2S系列、力士乐rexroth节流阀、力士乐单向节流阀,rexroth单向阀、力士乐单向节流阀、力士乐带集成放大器比例节流阀rexroth、力士乐节流阀,rexroth节流阀、力士乐节流阀、博世力士乐rexroth 二通比例节流阀、博世力士乐rexroth单向节流阀、博世力士乐rexroth准确节流阀F6型、博世力士乐rexroth节流阀 单向阀、博世力士乐叠加式节流阀 两路节流单向阀、博世力士乐节流阀、叠加式双单向节流阀、德国力士乐REXROTH(液压阀)单向节流阀、比例节流阀、节流和单向节流阀、力士乐节流阀
力士乐液压阀:Bosch Rexroth比例阀 齿轮泵、Bosch-Rexroth比例液压阀、力士乐rexroth电磁阀、力士乐放大板、力士乐电磁换向阀、力士乐电磁溢流阀、博世力士乐rexroth单向节流阀、博世力士乐rexroth压力继电器、博世力士乐rexroth齿轮泵、博世力士乐液压备件、德国Bosch Rexroth比例伺服阀、德国博世力士乐rexroth液压阀、德国博世力士乐rexroth电磁阀 柱塞泵 力士乐气动阀  REXROTH气动阀 力士乐气动元件 REXROTH气动元件 力士乐气动产品
Rexroth气动产品 力士乐气动 REXROTH力士乐 博世力士乐气动 BOSCH力士乐气动 BOSCH-REXROTH气动

联系方式

相关产品

上海韦米机电设备有限公司 > 铝产品 > 原装REXROTH气动阀R412007456
拨打电话 立即询盘