hat
2. lè klas T1.T1a, T1b ak T2 yo coldfinished, tib yo ka nan opsyon la nan manifakti a, dwe chalè trete afterthe final pas frèt-desen nan yon tanperati ki 1200 ° F oswa pi wo, bay youn nan tretman yo chalè espesifye nan 5.3.1 wasapplied apre soude
eng
2. When grades T1.T1a,T1b and T2 are coldfinished,the tubes may at the option of the manufacturer,be heat treated afterthe final cold-drawing pass at a temperature of 1200°F or higher.