中华人民共和国航空航天工业部航空工业标准 HB3316-91 衬套 代HB3316-80 3.2/ 其余 √ 2×45° 1x45° 中8.5 0.8 2x1 A 30 K 8(h6 41 0.01 A 标记:HB3316-91 1、材料:T12A钢,按G81298-86. 2.热处理、HRC60~64. 3.技术条件:按HB644-89 注:,按型架配机横向标尺槽宽确定. 航空航天工业部1991-05-07发布 1991-07-01实施 ...
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