钢质模锻件金属流线取样要求及评定Sampling requirements and assessment for metal streamline ofsteel die forging partsICS 77.140.85CCS J 32中华人民共和国国家标准GB/T 44948—20242024-11-28 发布2025-06-01 实施国家市场监督管理总局国家标准化管理委员会发 布目　　次前言 ·············································...