Flange standard: National standard GB/T9115-2000, Ministry of Machinery STANDARD JB82-94, Lekala la Chemical Industry standard HG20595-97HG20617-97, Lekala la Motlakase Power standard GD0508 ~ 0509, American standard ASME/ANSI B16.5, Japanese standard standard. JIS/KS(5K, 10K, 16K, 20K), maemo a Sejeremane...
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