大家在查：刘威斯·德姨表 iprint=mt Protozoa 1506年 Nabile 地区热玉南 cahiers Hollyfield

銅

n.copper

銅

銅

1

Shipbuilding -- Application of copper pipes

船舶配管用銅管使用基準

2

Cleaning , remove grease and surface oxidation

清潔銅面，除油污及氧化

3

Welding wire and rods of copper and copper alloys

銅及銅合金焊絲

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