Ngwakọta ọkpọkọIsi ọkpọkọEjiri Pipe Head maka ịnye ọrụ. Isi ọkpọkọ butt-weld maka akara njedebe pipeline a pụrụ ịdabere na ya, nwere nha ziri ezi, nha mgbidi edo edo, yana nkwụsi ike siri ike maka ọkpọkọ ụlọ ọrụ na njikọ ụgbọ mmiri.Gụkwuo »