回阀

1.
valve
澳大利亚买家 (Australia buyers)-62 ... 相关买家: 塑料棋子; plastic pawn; 相关买家: 回阀; valve; 相关买家: 墨水; Ink; ...
free.globalimporter.net|Based on 1 page
2.
aetvOne.bizwayvalve
...点,3)、正在管线外不要使行回阀蒙受重量,大型的行回阀(aetvOne.bizwayvalve):当收持,使之不受管系产生的压力的影响。
www.020famen.com|Based on 1 page

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