Type: Long weld neck(Long WN, LWN) Flange 
Materials:
ASTM A105
A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2
A516.60
A694 (F42, F46, F48, F50, F52, F56, F60, F65, F70)
A182 F304/304L, F316/316L, F316H, F310, F321
A182 F11, F22,
Standards: API, ANSI, BS, JIS, UNI, MSS and SP
Pressure: ANSI class 150 to 2,500
Size: 1/2 to 56 inches (DN 15 to DN 1,400 mm)
Used in: Oil, Offshore, Water, Ship, Natural Gas, Power, Pipe Projects etc.