threaded cast-iron fittings 中文意思是什麼
threaded cast-iron fittings
解釋
螺紋鑄鐵管件-
Threaded pipe fittings in malleable cast iron and cast copper alloy
可鍛鑄鐵和鑄銅合金的螺紋管配件 -
Threaded pipe fittings in malleable cast iron
可鍛鑄鐵制螺紋管件
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