Big Block Shandong Sente Packing Material Co., Ltd Base Info Model NO.：different sizesUsage：Stone Cutting, Drilling, Engineering Material, Optical Glass Cutting, Diamond Making,ScdTrademark：QimingOrigin：Luoyang, Henan, ChinaHS Code：84669100 Description Pre：Superhard Abrasive Cubic Boron Nitride Monocrystal CBN620 Next：Small Block
