42CrMo alloy seamless steel pipe jẹ iru paipu irin ti o ni agbara giga, líle giga, ati resistance resistance to gaju, ti a ṣe ti 42CrMo alloy steel.O ni awọn ohun-ini ẹrọ ti o dara, gẹgẹ bi agbara giga, lile giga, resistance yiya ga, ati resistance ipata giga, ati pe o dara fun manu ...
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