... hole)(GB/T2078, 2079& 2080 )2.Tungsten Carbide blade,knife,cutting, scraper blade and printing ... Chuanying Carbide Co., Ltd. is a professional tungsten carbide products manufacturer. Our products cover tungsten carbide rings, bushins, tips, ball,blasting ... nozzles and nozzle liners.We are also very good at producing special shaped tungsten carbide ...