Round asye divize an twa kalite: cho woule, fòje, ak frèt trase.Espesifikasyon yo nan cho-woule asye wonn yo se 5.5-250mm.Pami yo, 5.5-25mm ti asye wonn se sitou apwovizyone nan pakèt nan ba dwat, ki yo souvan itilize kòm ranfòsman, boulon ak divès kalite eleman machin;Se wonn asye ki pi gwo pase 25mm sitou itilize pou manifakti eleman machin, billets tib asye san pwoblèm, etc.Number: Q195, Q235, 10, 20, 35, 45, Q215, Q345, 12Cr1MoV, 15CrMo, 304, 316, 420Cr,, 420Cr 20CrMo, 35CrMo, 42CrMo, 40CrNiMo, GCR15, 65Mn, 50Mn, 50Cr, 3CrMo 2w8v, 20crmnti, 5crnnmmo