... PN160, 2. ANSI B16.5 carbon steel forged flanges,(Material A105,Q235)150LB,300LB,400LB,600LB,900LB,1500LB,2500LB WNRF,WNFF ... ,BLRF,WNRF,WNFF flanges 4.Italy Flanges(MaterialRst37.2,S235JRG2,A105)UNI2276,UNI2277,UNI2278, UNI6084,UNI6089,UNI6090,UNI2544,UNI2282,UNI6090,UNI6091 ...