... in accordance with ANSI B 16.5 from 1/2" to 24" and classes 150 to 2500 ( ... BS4504,SABS1123,EN1092-1, UNI,AS2129,GOST-128202. Type:Plate,Slip-on,Welding Neck.Thread,Socket weld,Blind3. ... Size:1/2-78 inch (DN15-DN2000)4. Material:Carbon steel: ... A105,SS400,SF440 RST37.2,S235JRG2,P250GH,C22.85. Surface TreatmentAnti-rust Oil, Transparent ...