... certificates3.Use: dry/wet coring4.Diameter : 25mm to162mm5.Goodness:high efficiency,no-chipping,long life6.Material: 65Mn,45#,HSS ,stainless ... Ltd. is a specialized manufacturer supplying a full range of diamond saw blades, TCT saw blades, cutting discs and grinding ... granite, marble, concretes, asphalts, titles and wood with good quality. All of our products are exported to foreign countries and ...