... technical assistance. 3.Specifications: Item No.DiameterGrit NO.ST-D16958050#,100#,150#,200#,300#,ST-D1695100400#,500#,800#,1000#,ST-D16951251500 ... shipment in 7-15 days after receiving your payment or L/C. 6.Payment:We accept T/T or 30% payment ... in advance and the rest 70% by irrevocable L/C. Polishing Diamond Floor Tools