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气瓶管
  • 高压容器、气瓶用管

     biaozhun:gb 18248---------zhongguoguojiabiaozhunjis g3429--------ribengongyebiaozhunyongtu:shiyongyuzhizaogaoyarongqi、qipingyongwufenggangguan。zhuyaoshengchangangguanpaihao:37mn、34mn2v、30crmo、35crmo、sth11、sth12、sth21、sth22deng。jixiexingneng:biao   zhunpai  haokanglaqiangdu(mpa)qufuqiangdu(mpa)shenzhanglv(%)gb 1824837mn≥750≥630≥1634mn2v≥745≥530≥1630crmo≥930≥785≥1235crmo≥980≥835≥12 huaxuechengfen:biao  zhunpai haohua   xue   cheng   fencsimnp、scunimocrvgb18...

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