600# flange 1.Size:1/2'' - 72'' 2.Standard: ASTM ... ,JIS B1503/B2220, DIN 2573 3.ISO9001, SGS, BV 600# Weld Neck flange 1. Specification Type600# Weld Neck flangePipe ... Size1/2"—72" Pressure150# ,300#, 600#, 900#,1500#, 2500#, PN16, PN25, PN40, 5K,10K, 6bar, ... from port.2.Product3.Production4.Marking5.Packing & Transportation6. Company 600# Weld Neck flange