... steel, ductile iron (S.G.iron), gray iron, Aluminum and stainless steel etc. manufacture the materials of carbon ... , ductile iron (S.G.iron), gray iron, Aluminum and stainless steel etc. NINGBO WIN CASTING CO.LTD ... our best to make long business relationships with all the customers. Now the products are mainly sell ... , Singapore etc. We warmly welcome customers from all over the world come to visit us.