... slip on flange 2. Material:S S 3. Size:1/2"-40" 4. Type:slip on flange 5. Certificate:IS09001:2000/2008/TUV 1. ANSI 304 Slip on ... flange2. Material:Stainless Steel:such as 201, 301 , 304,304L,316,316L,321 and so on.3. Standard:GB,JIS,BS,DIN ... and 160, DIN2572,2576,2502,2631-2635,2642,2573,2566 ,5K-40K and so on .9. Sealing surface : FF ,RF, LJ, FM ...