... flange 1.Size:1/2'' - 72'' 2.Standard: ASTM A105, ANSI B16.5/B16.47/B16.48,JIS B1503/B2220, DIN ... 2573 3.ISO9001, SGS, BV 150# Weld Neck flange 1. Specification Type150# Weld Neck flangePipe Size1/2"—72 ... B16.45, JIS B2220, DIN2633,ASME , ASTM,,JIS , DIN , EN,MaterialQ235, 20#, Q345A105, ST37.0,ST35.8, ... .Production4.Marking5.Packing & Transportation6. Company 150# Weld Neck flange