... OEM service Technology:precision casting/investment casting; water glass; lost wax.Material:Carbon steel, alloy steel, stainless steelStandards:ASTM, AISI, ... peening machine,drilling machine,3D paralleling vibrating casting machine,arc welding machine, wax injection ... ; Management: Total Quality Management, ERP, Advantages: Casting no internal shrinkage, external shrinkage defects; rich experience ...