Hunan DL Carbide Co., Ltd. was established in 2011, located in Zhuzhou City, Hunan Province, the largest cemented carbide production base in China. We are a one-stop customized service provider and manufacturer for tungsten carbide products, and main application area of the products include but not limited to:-Steel Wire Industry: tungsten carbide rollers, carbide nail making tools, carbide wire drawing dies, carbide wire guide dies...-Oil and ...