... /8",1" 2. Stainless steel 304, 316 3.Heavy Duty Top Slide,stainless steel top slide 3.Mirror polished 1 ... . Heavy Duty Top Slide,stainless steel top slide Casting: investment casting ... , thread cutting.5. Surface treatment: glass rays electrolytic polishing, coating, varnishing, bromzing. Passivating, grinding, polishing6. Analysis wet chemically or ...