... .8/P250GH, A105/SS400. Size: DN15-DN2500. ASTM a266 gr.4 flangeThe specification is as follows:1-American Standard:ANSI B ... , T/D, T/E, T/F, AS2129, etc.4-Japanese (JIS) Standard:SS400, SF440, 5K, 10K, 16K, 20K, 30K, SDPFF, SOHFF, BLFF ... plywood cases or pallets for vessel transportation ASTM a266 gr.4 flange