Waqtigan xaadirka ah, Hunan Great Steel Pipe Co., Ltd ayaa iska leh 3 qaybood oo ah line-soo-saarka birta kulul ee birta ah ee kulul iyo 2 qaybood oo ah khadka wax soo saarka birta birta ah ee kulul ee fidsan oo leh awoodda wax-soo-saarka sanadlaha ah ee 200,000 tan, cabbirka cabbirku waa 73mm ilaa 630mm.Shaybaarkeeda jidheed iyo kiimikaad waxay qabtaan tijaabooyin kala duwan oo jidheed iyo kiimiko ah iyo tijaabooyin tuubooyinka birta, waxayna ku qalabaysan yihiin cilladaha hadda jira ee eddy, ogaanshaha cilladaha dillaaca iyo qalabka ultrasonic dildilaaca iwm. oo leh cabbirro kormeer oo dhammaystiran, oo awood u leh inay buuxiyaan imtixaannada caadiga ah ee kala duwan iyo shuruudaha kormeerka ee tuubooyinka birta.