... .9years' experience 3.high qulity 4,b Details about custom Sand Casting Auto Part : 1) Material: iron2) Design: According to ... , Strict quality Control System We offer both green sand castings and resin sand casings in both ferrous and non-ferrous materials. ... of secondary operations can be performed on both types of sand castings. They include heat treatment, machining, plating, painting, polishing ...