... 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 ... steel ,alloy steel, heat resistant steel ,tool steel ,brass and aluminum ,according to DIN ,EN, ASTM, BS,JCSI.3. ... Piece numbers: small, medium and large series.4. Process: cast, machining, turning, milling, drilling, ...