slot joint 中文意思是什麼
slot joint
解釋
狹槽連接-
Slot - screwed joint
螺絲釘孔接榫 -
Steel filter pipes for drilled wells with slot perforation and fisching butt strap joint
帶開槽搭接孔和魚尾板連接的鉆井用鋼制濾管
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