Ụlọ ọrụ Dashan FASTENER CO., LTD.BỤ nnukwu ụlọ ọrụ mmepụta ihe, nke nwere ọtụtụ ụlọ ọrụ mmepụta ihe.Ihe nwere ike ịmepụta ngwaahịa carbon ígwè nkịtị ma ọ bụ ngwaahịa igwe anaghị agba nchara.Ngwaahịa usoro arịlịka gụnyere ege nrụzi ụgbọ ala, bolts arịlịka kemịkalụ, bolts mgbasawanye, bolts implosion na ihe ndị ọzọ.Ngwaahịa nke ụlọ ọrụ na China Construction Group, China Railway Group, China Metallurgical Group, China Communications Group, China Coal Group emeela na imekọ ihe ọnụ.