供应国际低合金高强度钢和耐候钢：E355E460/E460E550E690/Fe235WFe355W表面硬化结构钢：C10C15E4C15M220Cr420CrS416MnCr516MnCrS520MnCr520MnCrS520NiCrMo220NiCrMoS218CrNiMo7/31CrMo1233CrA1Mo5441CrAlMo74调质结构钢:C18C20C20E4C20M2C25C25E4C25M2(C30)(C30E4)(C30M2)C35C35E4C35M2(***0)(***0E4)(***0M2)***5***5E4***5M2C50C50E4C50M2C55C55E4C55M2C60C60E4C60M2/28Mn636Mn642Mn634Cr434CrS437Cr437CrS441Cr441CrS425CrMo425CrMoS434CrMo434CrMoS442CrMo442CrMoS450CrMo436CrNiMo436CrNiMo631CrNiMo851CrV6)