recessed joint 中文意思是什麼
recessed joint
解釋
凹槽灰縫-
Stainless steel tubes and fittings for the food industry and other hygienic applications - specification for recessed ring joint type couplings
食品工業及其他衛生設施用不銹鋼管及接頭.第5部分:凹環形連接管接頭規范
分享友人