... Structural Steel-ASTM 5130, JIS SCr430, DIN 28Cr4(1.7030), GB 30Cr(A/E)1. Relable leader in Special Steel products2 ... :South of West Ma Gezhuang village,South of Shuangqiao Train Station,Chaoyang District,Beijing. P.C.:100121Tel:010-51201667 Fax:51201677 ... Structural Steel-ASTM 5130, JIS SCr430, DIN 28Cr4(1.7030), GB 30Cr(A/E)