NINGBO RUICAN is a professional manufacturer of stainless steel flange, wheel hub, engine spare parts etc. The material is SS304 SS316L, 1.4301 1.4404 The process is investment casting+cnc machining. Common metals that are cast include cast iron, aluminium, magnesium, and copper alloys. This process is ideal for complex items that are small to medium-sized. Metal casting is one of the most efficient and versatile manufacturing processes today – and with good reason. This technique, which involves pouring molten metal into a mold, is actually thousands of years old.