ALTA SPECIAL STEEL Co.,Ltd is specialized in supplying and exporting tool steel, mold steel and alloy steel, especially for HOT FORGED BARS
A2, D2/1...
1. The shaft tube is made of high-strength alloy steel plate and is welded by submerged arc welding and argon welding. The shaft head is made of alloy...
Stone coated steel roofing tiles is based on Al-Zn steel. The surface and back protective films, together with the alloy composed of Aluminum and Zi...