Flanges Daquan

common Flange Standard:
  1. GB: GB/T9112-2000 (GB9113? 1-2000 ~ GB9123? 4-2000)
  2. American standard: ANSI B16.5 Class150, 300,600,900,1500 (WN, SO, BL, TH, LJ, SW) Japanese standard: JIS 5K, 10K, 16K, 20K (PL, SO, BL, WN, TH, SW) German standard: DIN2573, 2572,2631,2576,2632,2633,2543,2634,2545 (PL, SO, WN, BL, TH)
  3. Ministry of Chemical Industry Standard: HG5010-52 ~ HG5028-58, HGJ44-91 ~ HGJ65-91, HG20592-97 Series, HG20615-97 Series
  4. Machinery Division Standards: JB81-59 ~ JB86-59, JB/T79-94 ~ JB/T86-94, JB/T74-1994
  5. pressure vessel standard: JB1157-82 ~ JB1160-82, JB4700-2000 ~ JB4707-2000