莱钢 65MN弹簧钢高淬透性冲击韧性好气门簧用实心圆钢

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NO TIN NEWFOUCHANT STEEL CO. LTD.

Address:NOSEI CITY, JIANGSU PROVINCE, NEW WU DISTRICT, CHINA METALS MARKET (NEWPORT ROAD 2 STORE) ROOM B326
Tel:13357913787

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13357913787

莱钢 65MN弹簧钢 高淬透性冲击韧性好 气门簧用实心圆钢