Flange standards

GB: GB / T9112-2000 (GB9113 · 1-2000 ~ GB9123 · 4-2000)
American Standard: ANSI B16.5 Class150,300,600,900,1500,2500 (WN, SO, BL, TH, LJ, SW) ANSI B16.47, ANSI B16.48
JIS: 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)
Ministry of Chemical Industry standards: HG5010-52 ~ HG5028-58, HGJ44-91 ~ HGJ65-91, HG20592-97 series, HG20615-97 series
Mechanical standards: JB81-59 ~ JB86-59, JB / T79-94 ~ JB / T86-94, JB / T74-1994 Pressure Vessel Standards: JB1157-82 ~ JB1160-82, JB4700-2000 ~ JB4707-2000
Ship standard: GB568-65, GB569-65, GB2503-89, GB2506-89, GB / T10745-89, GB2501-89, GB2502-89