Industrial ọkpọkọ mmepụta akara nwere ike ime ka igwe anaghị agba nchara na carbon ígwè ọkpọkọ, na dayameta 12.7mm-325mm, ọkpụrụkpụ 0.3mm-8mm.Ngwaahịa bụ tumadi ọkpọkọ na tubes eji mmanụ ala, petrochemical, ewu, shipbuilding, agha, electric ike, Ngwuputa, coal, machinery n'ichepụta i ...
GỤKWUO