... P250GH, A105/SS400. Size: DN15-DN2500. ASTM a266 gr.4 flangeThe specification is as follows:1-American Standard:ANSI B ... etc.;3-British Standard:BS4504, NP16, NP25, NP40, BS10, TABLE D, TABLE E, TABLE H, BS10, BS4504, SAN1123, 1000/3, 1600/3, ... 2500/3, T/D, T/E, T/F, AS2129, etc.4- ... cases or pallets for vessel transportation ASTM a266 gr.4 flange