... .Size:DN15-DN1000. 3.Standard: ANSI B16.5,ANSI B16.47 ,GB,DIN,JIS ,BS,EN. 4.working press: CLASS 150 ... ~DN4000SO DN10~DN1000BL/PL DN10~DN2500Standard:ASME B16.5/ B16.47 ,DIN 2630,/2632/2631/2633DIN 2634/2635/2636/2637/263JIS ... , PN 250, PN 320, PN 400 Applications range:Water conservancy, electric power,power station, pipe fittings, machinery parts, pressure vessel,