... stell. It can be used to forge rough iron and hard bronze and make advanced refactory. The detail information:Brown Fused ... for Bonded Abrasives14# ,16#,20#,22#,24# , 30#,36# ,40#,46#,54#,60#70#,80#,90#,100#,120#,150#,180#,220 ... for Coated Abrasives14# ,16#,20#,22#,24# , 30#,36# ,40#,46#,54#,60#,70#,80#,90#,100#,120#,150#,180#,220 ...