... .Specification:7/8",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 ,precision ... . Materials: stainless steel ,carbon steel ,alloy steel, heat resistant steel ,tool steel ,brass and aluminum ,according to DIN ,EN, ASTM, BS ...