... .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 ... ,according to DIN ,EN, ASTM, BS,JCSI.3. Piece numbers: small, medium and large series.4. Process: cast, machining, turning, milling ...