Nonstandard flange
German standard: DIN2573, 2572, 2631, 2576, 2632, 2633, 2543, 2634 and 2545 (PL, SO, WN, BL, TH)
Ministry of chemical industry standards: HG5010-52 to HG5028-58, HGJ44-91 to HGJ65-91, HG20592-97 series, HG20615-97 series
Standard of machinery department: JB81-59 ~ JB86-59, JB/T79-94 ~ JB/T86-94, JB/T74-1994
Pressure Vessel Standards: JB1157-82 ~ JB1160-82, JB4700-2000 ~ JB4707-2000
Application: boilers, pressure vessels, petroleum, chemical industry, shipbuilding, pharmaceutical, metallurgy, machinery, stamping elbow food and other industries.
Quality management: ISO9001:2000 quality management system certification
Note: a variety of non - standard materials can be fixed