Approval of rules for the certification of welders and welding specialists. Об утверждении правил аттестации сварщиков и специалистов сварочного производства.
Document Number/Номер документа: Resolution 63 of 10-30-98
Approval of rules for the certification of welders and welding specialists. Approval of rules for the certification of welders and welding specialists.
Approval of rules for the certification of welders and welding specialists. Approval of rules for the certification of welders and welding specialists.
Document Number/Номер документа: Приказ 167 от 20.12.1994
Approval of rules for the certification of welders and welding specialists. Approval of rules for the certification of welders and welding specialists.