... , such as the high speed steel, stainless steel and high carbon steel.(2)It also usually used for ... as precious metal, the gold, crystal, the glass and cowboy wear. JIS#280-JIS#4000(1)It can be used ... in grinding and polishing the gold, silver jewellery, the eye glass, bearing and ... products.0-1,1-3,3-5,5-8mm and 180,200,240,280,320F Super Single Crystal Aluminium ...