... steel,alloy steels,malleable cast iron bronze,etc.Material:A C W/A PA GC Size150 x 20 x 31.75mm20pcs ... ,GC60,GC80,GC100,GC120...Hardness:K,L,M,N ( function(){ var aBigImageSrc = [ 'http://i01.i.aliimg.com/photo/v1/714110705_1/grinding_wheel.jpg' , 'http ... /v1/714110705_2/grinding_wheel.jpg' , 'http://i01.i.aliimg.com/photo/v1/714110705_3/grinding_wheel.jpg' ]; var oProductShow = new AE.run. ...