Design and manufacture according to the provisions of GB/T12237.
The length of the structure is in accordance with GB/T12221 or customer requirements.
Flange end dimensions according to GB/T9113,JB/T82.1-82.4Hg20592(RF,FM,RJ) requirements.
Inspection and testing according to the provisions of JB/T9092,GB/T26480
Structural features:B.B(middlebolt)Flow:Full diameter(FP)Reduced diameter RP
The main material:A105N,LF 2,LF 3,F11,F5,F22,F304,F304L,F316,F316L,F321,F304H,F316H,F321H,F51,F53,F55,F91,F92,F347,310S,800H,600,625 special materials and soon.