retentor do pistão da bomba pump piston seal
Creator: | |
Language pair: | Portugees naar Engels |
Definition / notes: | ...A mud pump piston seal assembly according to claim 1 wherein the contiguous surfaces of the elastomeric and anti-extrusion rings comprise in each case two ... www.freepatentsonline.com/4143586.html |
URL: | http://www.freepatentsonline.com/5960700.html |
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