... request.diameterthicknessgritGrade3”3mm50#,100#,200#,400#,800#,1500#,3000#,BUFFP,S,E4”3mm50#,100#,200#,400#,800#,1500#,3000#,BUFFP ... ”3mm50#,100#,200#,400#,800#,1500#,3000#,BUFFP,S,E P: PremiumS: StandardE: Economyame:diamond dry polishing pad use condion:only ...