Beijing Tong Ma abrasives Co.,Ltd is an abrasives manufacturing, professional processing company. For the abrasives production, supply, the use of a strong professional knowledge. Abrasives corundum ( A: 20-900mm diameter ), white fused alumina ( WA ), green silicon carbide ( GC ), chrome corundum ( PA ) material of the grinding wheel, Whetstone, grinding all kinds of special-shaped wheel. Abrasive series is widely used for grinding plane, the circular grinding, cylindrical grinding, no grindin...