... other kinds of lathe Material: GGG40-GGG70 ductile cast iron,GG15-GG30 grey cast iron, vermicular cast ironProcess: Resin sand casting, Precoated sand casting, clay ... output is about 5,000 ton of different kinds of cast iron goods.We can do many kinds of test before production ... , we use the medium frequency coreless induction heat preservation electric stove to reduce the pollution.