... (lost wax) casting, machining, heat treatment.Weight: up to 35kgsCustom design and manufacture available, Commonly Used Material: 1. Stainless steel:303, 304 ... , WCB,WC6,WC9,C45, C20 etc.3. Low carbon alloy steel: 15Cr3,15CrNi6,16MnCr5,34CrMo4,42CrMo4, 56NiCrMoV7 etc. investment casting parts