... manufacture the materials of carbon steel, alloy steel, ductile iron (S.G.iron), gray iron, Aluminum and stainless steel etc. manufacture ... the materials of carbon steel, alloy steel, ductile iron (S.G.iron), gray iron, Aluminum and stainless steel etc. NINGBO ... all the customers. Now the products are mainly sell to U.S.A, Brazil, Spain, Canada, Australia, Singapore etc. We warmly welcome ...