供应C4382 ,20MnCrS5 优质冷作模具钢K01802 K01803 K1200 K02003 K12202 A588 A606 A618 A633 Gr.70 A656 A690 A709 A715 A808 A812 A841 A871 Type3 Type7 Type4 Algotuf50 Algotuf50A Algotuf50R Algotuf60A Algotuf70 Algomaf50R ArmcoHigh-Strength C-45 C-50 C-55 C-60 C-65 C-70 ArmcoHigh-StrengthResisting MW5 MW10 MW15 MW20 MW25 MW30 MW35 MW40 MW45 MW55 MW60冷拉钢、耐腐蚀合金等材料。具有品种齐全. 质量稳定.价格优惠.送货及时等优点.