Zhuzhou Chuangrui Cemented Carbide Co., Ltd dị na Zhuzhou City, Hunan Province, "Hometown of Cemented Carbide" nke bụ otu n'ime ndị ọkachamara na-emepụta ihe na ụdị kachasị dị iche iche na nkọwa zuru oke nke ngwa ngwa valvụ siri ike.Anyị nwere ihe karịrị afọ 15 nke ahụmịhe mmepụta ọkachamara na carbide cimented, ma nweekwa otu ndị ọrụ dị elu.E ji mara anyị site na imepụta ngwaahịa carbide ciment na-abụghị ọkọlọtọ nke siri ike, ma bụrụkwa ọkachamara n'ịmecha ụdị dị mgbagwoju anya nke ngwaahịa carbide cimented.Ngwaahịa anyị emeriela otuto otuto sitere n'aka ndị ahịa.