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Steel
Steel is a type of metal forged with iron and coal that is lighter and stronger than iron.
Industry: Metals
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Steel
電阻焊 (ERW) 鋼管
Metals; Steel
從帶的熱軋鋼卷成形通過並焊接管。雖然無縫管是傳統上更強大和可比戰爭遺留爆炸物管比貴、 戰爭遺留爆炸物技術提高和技術現在占約好的油井出貨量按噸位的 ...