DIN-Fachbericht CEN ISO/TR 3834-6:2007
金属材料氧炔焊的质量要求.第6部分:ISO 3834(ISO/TR 3834-6-2007)的实施指南
Quality requirements for fusion welding of metallic materials - Part 6: Guidelines on implementing ISO 3834 (ISO/TR 3834-6:2007); German version CEN ISO/TR 3834-6:2007