... grinding disc 1.size: 180X6X22mm 2.grain: aluminum oxide 3.application: for metal, non-ferrous metal, ... and advantages:1. ISO certification2. Using best Aluminium oxide, Silicon carbide, high quality resin powder, resin solution ... cm) (mm)(inch)4300m/min4800m/minkg/pcs/ctn(L*W*H)JX-003100*2.5*164"*3/ ... oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); flat aluminum oxide grinding disc for metal