爱情岛线路一免费观看

汽车与机械结构管
  • 汽车齿轮、齿轴用钢管材料

    爱情岛线路一免费观看biaozhun:gb/t 5216 ——zhongguoguojiabiaozhunjis g4052——ribengongyebiaozhunastm a304——meiguocailiaobiaozhunen 10084——oumengbiaozhunyongtu:shiyongyuqichegongyechilun、chizhoujiagongyongcailiao。zhuyaopaihao:20crmntih、20crmoh、scm420h、scm822h、sae8620h、16~20mncr5deng

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  • 液压支柱管

    爱情岛线路一免费观看 yeyazhizhuguan paihaohuaxuechengfen%csimnpsnicrcu moqita450.42-0.500.17-0.370.50-0.80≤0.35≤0.35≤0.25≤0.25≤0.20--27simn0.24-0.321.10-1.401.10-1.40≤0.35≤0.35≤0.25≤0.25≤0.20≤0.15-paihaojixiexingnengkanglaqiangdumpaqufuqiangdumpayanshenlv%chongjigongjyingduhbs45≥600≥355≥16≥39≤19727simn≥980≥835≥12≥39≤217...

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  • 汽车机械结构用无缝钢管

     biaozhun:gb/t 8162------------zhongguoguojiabiaozhunastm a519--------meiguocailiaoyushiyanxiehuibiaozhunen 10297-1---------oumengbiaozhunjis g3445-----------ribengongyebiaozhunyongtu:shiyongyuyibanjiegou,qichejixiejiegouyongwufenggangguan。zhuyaoshengchangangguanpaihao:10、20、35、45、16mn、1020、1045、1541、e275、e315、34crmo4、42crmo4、stkm13a、stkm13bdeng。jixiexingneng:biao   zhunpai haokanglaqiangdu(mpa)qufuqiangdu(mpa)shenzhanglv(%)gb/t 816210≥335≥205≥2420≥390≥245≥2035≥510≥3...

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