pulley and tensioner 中文意思是什麼
pulley and tensioner
解釋
皮帶輪與張緊輪-
Band conveyers used in fishery docks. essential parameters, dimensions and technical requirements of screw with slide jockey - pulley tensioner
漁業碼頭用皮帶輸送機.滑塊式螺旋拉緊裝置基本參數尺寸與技術要求
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