日韩精品乱码AV一区二区,国产美女被遭强高潮免费一视频,欧美XXXXX高潮喷水

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      Location:Wen Zhou Zheng Te CO.,LTD >> Products >> Globe valve >> GB flange globe valve

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      GB flange globe valve
      GB flange globe valve
      主要零件材料及性能 Main Part Materials and Property

      閥體、蓋、瓣

      閥桿

      密封面

      墊片(環)

      填料

      WGB

      2Cr13

      13Cr STL 本體材料 PTFE 尼龍

      增強柔性石墨1Cr13/柔性石墨1Cr13 08軟鋼 0Cr18Ni9Ti 0Cr17Ni12Mo2Ti XS550F(T) PTFE

      增強柔性石墨/柔性石墨 SFB/260 SFP/260 PTFE

      WC1

      38CrMoAI 25Cr2MoV

      WC6

      WC9

      ZGCr5Mo

      ZG1Cr18Ni9Ti

      1Cr18Ni9Ti

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      日韩精品乱码AV一区二区,国产美女被遭强高潮免费一视频,欧美XXXXX高潮喷水