... Materials:S235JRG2/RST37.2, C22.8/P250GH, A105/SS400. Size: DN15-DN2500. ASTM a105 flangeThe specification is as follows:1-American Standard ... 16.5, ASTM, ASA, API-605, AWWA-C207, MSS-SP44, A105, 150LB, 300LB, 600LB, 900LB, 1500LB, 2500LB, WNRN, SORF, BLRF, THRF ... ;Packing: by plywood cases or pallets for vessel transportation ASTM a105 flange