brass hose coupling
... brass hinge 黄铜铰链 brass hose coupling 黄铜水龙管接头 brass lining 黄铜衬层 ...
基于30个网页-相关网页
·2,447,543篇论文数据,部分数据来源于NoteExpress
研究试制了一种用于黄铜管道、水龙头和管接头等饮用水系统用零件的表面脱铅的脱铅试剂。
In this paper, a new kind of reagent which is used in leaching lead from surface of brasses in drinking water systems is studied, such as pipes, fittings and faucets.
youdao
应用推荐
模块上移
模块下移
不移动