Structure length according to:factory standard or customer requirements.
Socket end dimensions: American standard according to AS MEB16. 11 provisions. Thread end dimensions:American Standard ASME B1.20. 1GB/T 7306. requirements.
Structuralfeatures:B.B(middlebolt)Flow:Full diameter(FP) Reduced diameter RP
The main material:A105N,LF2,LF3,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.