... cracks,pores etc on the surface Precisional Investment Casting Stainless Steel Part Production rangeMost of our production is automobile parts ... .50g to 1000kg4,Surface finish: polishing, oiled(rust-prevented), zinc-plated, chrome-plated, hot-galvanized, sandblasting, painting, powder ... ruler, Depth ruler, Outside ruler, Venire Caliper,etc.Best service:1, Good communication with every of our customer, ...