Ningbo Yuntao PRECOSION CASTING Ltd is a industrie- und Handelsunternehmen. we specialize in manufacturing of Casting and Forging with high-standard quality,satisfied delivery and service,and reasonable price. 1.OEM service available2.Materials: stainless steel,cast iron,pig iron,carbon steel,alloy steel,non-ferrous,grey iron,ductile cast iron and so on3.Process: lost wax process, soluble gla