1. Type: Welding Neck flanges 2. Materials: ASTM A105, DIN ST37.2 ASTM A182-F304, F304L, F316, F316L , Q235 , 20#, 20Mn, 16Mn; 3. Standard: ANSI B16.5, B16.47, MSS SP-44, API, DIN, JIS, HG, GB, JB etc. 4. Mail: lisa686_1028 (at) hotmail dot com 5. Rating: ANSI 150LBS~2500LBS, DIN PN6~PN160,JIS 5K~30K, PN0.25~PN25 PN2.0~PN42.0 6. Specification: From 1/2" To 60".