热交换器用焊接钢管

[中文适用范围]： ADOPTED_FROM:ISO 6758:1980 [外文原描述]： Specifies the characteristics of plain end tubes manufactured from unalloyed and alloyed steels (including austenitic stainless steels). It does not apply to steel tubes intended for exposure to flame. An annex gives metric dimensions which correspond to inch dimensions.