Tsev / Cov khoom lag luam cim npe “PWHT induction” Default sorting Tsi yog tej chaw Tsi yog qhov tseeb Tsi yog nqe: tsis rau siab Tsi yog nqe: yuav tsis tshua muaj Tom Qab Welding Thaum Tshav Kub Kub Kho Tshuab Nrog InductionTiv tauj peb PWHT System | Ncej Welding Thaum Tshav Kub Kub Kho TshuabTiv tauj peb