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發(fā)布時間: 2013-9-17 14:48
正文摘要:A flexible pipe joint capable of joining connecting portions of connected objects such as pipes to each other while permitting the direction of joining between both to be varied as desired. First and ... |
|關于我們|網站地圖|油氣儲運網 ( 魯ICP備11007657號-3 )
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