... /RST37.2, C22.8/P250GH, A105/SS400. Size: DN15-DN2500. ASTM a182 f316l flanges The specification is as follows:1-American ... Standard:ANSI B 16.5, ASTM, ASA, API-605, AWWA-C207, MSS-SP44, A105, 150LB, 300LB ... etc;Packing: by plywood cases or pallets for vessel transportation ASTM a182 f316l flanges