Who we are Cutstar Carbide Company Ltd. Of Sichuan Province is a custom manufacturer of Tungsten Carbide and Silicon Carbide products. What we do best Cutstar Carbide is adept in manufacturing Carbide Wear Resistant Parts such as Mechanical Sealing Rings, Bushings, Valve Cores, Drawing Dies and a full range of high quality Blast Nozzles. Due to our high and stable quality products, Cutstar's mechanical sealing rings are supplied to many world famous mechanical sealing parts companies. ...