Specification: from 1/2" to 80" (DN15 to DN2000) Standard: ANSI ... , DIN, JIS, HG, GB, JG Specifications 1)welding neck , slip - on ,socket welding , blind. 2)ASTM A105,DIN ST37.2,ASTM ... 5K - 30K HG PN0.25 - PN25 PN2.0 - PN42.04)Specification: from 1/2" to 80" (DN15 to DN2000)5)Special ... , BS, DIN, JIS, EN, GB and customer's request. slip-on stainless flanges