标 准 号:DIN 2559-4-1994简体中文标题:焊缝预加工.第4部分:不锈钢无缝管圆焊缝内径配合繁体中文标题:焊缝预加工.第4部分:不锈钢无缝管圆焊缝内径配合English Name: Preparation of welds; part 4: matching of inside diameters for circumferential welds on seamless pipes of stainless steels...