Cov pa roj carbon steel seamless steel yeeb nkab yog ua los ntawm tag nrho cov hlau thiab tsis muaj seam ntawm qhov chaw.Raws li cov txheej txheem ntau lawm, seamless kav muab faib ua cov raj kub, cov yeeb nkab txias, cov yeeb nkab txias, cov yeeb nkab extruded, yeeb nkab. jacking thiab lwm yam.Cov pa roj carbon seamless steel kav feem ntau yog siv los ua cov kav dej drilling rau roj av geology, cov kav dej tawg rau kev lag luam petrochemical, boiler hlab, cov kav dej thiab cov yeeb nkab steel yeeb nkab rau tsheb, tsheb laij teb thiab aviation.