Standar flensa: Standar nasional GB/T9115-2000, STANDAR Kementerian Permesinan JB82-94, standar Kementerian Industri Kimia HG20595-97HG20617-97, standar Kementerian Tenaga Listrik GD0508 ~ 0509, standar Amerika ASME/ANSI B16.5, standar Jepang JIS/KS(5K, 10K, 16K, 20K), Jerman standar...
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