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 ...
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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.
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