... A105/SS400. Size: DN15-DN2500. ASTM a105 blind flange The specification is as follows:1-American Standard ... :ANSI B 16.5, ASTM, ASA, API-605, AWWA-C207, MSS ... 10K, 16K, 20K, 30K, SDPFF, SOHFF, BLFF etc.5-Other standard:UNI2276, 2277, 2278, 6084, 6089, 6090, ... ;)Type: Welding Neck Flanges, Slip-on Flanges, Blind Flanges, Threaded Flanges, Lap-Joint Flanges, Socket Welding ...