hat
Cho fini ak frèt tib fini pral chalè trete nan yon tanperati ki nan 650 ℃ omwen. E plen annaealed, izotèrmal Rkwit, oswa normalized ak apeze kondisyon an opsyon nan nan manifakti a, tanperati a revenu minimòm va pa mwens pase 650 ℃.
eng
Hot finished and cold finished tubes shall be heat treated at a temperature of 650? at least. And full annaealed, isothermal annealed, or normalized and tempered condition at the option of the manufacturer, the minimum tempering temperature shall be not less than 650 ?.