... technician team 3. Strict quality control 4. OEM service Resin-bonded sand casting iron parts: Our advantages:1. abundant ... etc.processsand casting,resin bonded casting, investment casting(lost wax casting), die casting, Weight range0.05-5000kgSurface treatmentpainting, polishing, heat treatment, ... requirementsProcess:Huangshan Amethyst Casting Industry Co.; Ltd Resin-bonded sand casting iron parts