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  • HB/Z 353-2002航空发动机材料选用原则、程序与要求Principles procedures and requirements for aero-engines mate...2022-11-02
  • HB 2505-1989圆上夹板2022-11-02
  • HB/Z 99.8-1987飞机制造工艺工作导则.飞机生产定型工作条例2022-11-02
  • HB 5546-198360°锥面管接头螺纹部分2022-11-02
  • HB 20016-2011带收紧螺母三通管接头(1Cr11Ni2W2MoV)2022-11-02
  • HB 4531.3-1991H型孔系组合夹具系统附件.L形键销2022-11-02
  • HB 6363-1989单轴摆式伺服线加速度计.通用规范2022-11-02
  • HB 6731.6-2005铝合金化学成分光谱分析方法 第6部分:火焰原子吸收光谱法测定铁含量Methods for spectrometric analys...2022-11-02
  • HB 8084-2002带减轻孔双螺栓侧面固定夹紧卡箍(8084)2022-11-02
  • HB 7015-1994渐开线花键量规技术条件2022-11-02
  • HB 20015-2011带收紧螺母三通管接头(0Cr18Ni9)2022-11-02
  • HB 5152-1996金属室温旋转弯曲疲劳试验方法2022-11-02
  • HB 1852-2000支脚2022-11-02
  • HB 7308-1996过盈螺纹机用和手用丝锥.HB 6545-91AG、BG螺纹用d=3~4mm p=0.5~0.7mm2022-11-02
  • HB 8062-2002MJ螺纹角型密封托板自锁螺母Self-locking sealed corner anchor nuts with MJ thread2022-11-03
  • HB 5514-1996普通型无折断槽钢丝螺套2022-11-03
  • HB 3637-1985簧片2022-11-03
  • HB 8364-20131Cr17Ni2螺纹公差带6e头部1个保险丝孔长螺纹小六角头螺栓2022-11-03
  • HB 5351.5-2004熔模铸造涂料性能试验方法 第5部分:pH计法测定酸度Test method for properties of investment castin...2022-11-03
  • HB 4-51-1999塑料垫圈2022-11-03
  • HB 7026.6-1994夹具通用元件定位件.带螺杆圆柱定位销2022-11-03
  • HB 3881-1986内螺纹工艺底孔用套量头单头.通端光滑塞规.M42~M802022-11-03
  • HB 1-702-1983带挡圈槽圆柱销2022-11-03
  • HB 473-1989宽底座(立柱500×500)2022-11-03