Casting Process: 1.investment casting:2.lost wax casting; a,Website:http://www.lifestylecasting.com, Sodium silicate binder process,b, Colloidal silica binder process.3.sand casting;4. die casting.Material specification: 1. carbon & low alloy steel;2. stainless steel;3. high alloy & wear resist steel;4. gray iron; ductile iron;5. malleable iron;6. alloyed cast iron7. aluminum alloy;8.cooper alloy;9. zinc alloy