... Resin over Resin.TJ103: J-wt cloth,Aluminum Oxide coated,Resin over resin.JB-5:J-wt cloth,Aluminum Oxide,Resin over ... used by power tools.JA135: J-wt cloth,Aluminum Oxide coated,Resin Over ResinJA548: J-wt cloth,Heat treated Aluminum Oxide,Resin Over ... ResinJA548M: J-wt cloth,Heat terated Aluminum Oxide,Special ...