... 5130, JIS SCr430, DIN 28Cr4(1.7030), GB 30Cr(A/E)1. Relable leader in Special Steel products2. Competitive price3. ... early 2004, Wanbao special steel has established QMS according to ISO9000, made quality policies and expanded business idea and ... scope to achieve the aim.We are specialized in heat-resisting ... JIS SCr430, DIN 28Cr4(1.7030), GB 30Cr(A/E)