butt iron 中文意思是什麼
butt iron
解釋
板端捻縫鑿-
Suppliers of malleable iron, carbon steel butt - welded, stainless steel screwed pipe fittings and seal tapes. also produces flanges, castings and forgings and cast iron valves
-開發和生產「 xf 」幸福牌閘閥截止閥球閥止回閥蝶閥等產品和非標系列產品。
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