... & Efficient grinding performance:High speed,Smooth cut Electro-plated diamond abrasive disc:(1) Diamond coating width: 18mm, 20mm or as ... hard tile, ceramics, glass, etc.Delivery time: 30daysWe,Hangzhou Kongs Tools Co., Ltd. is a leading manufacturer of electro-plated diamond ... tools,which are used in stone and construction industries, such as ...