J 16JB/T 1733 1992 1992-12-25 1993-07-01 11 pN0.251.6 MPa DN151800 mm 2 DN 500 mm DN 450 mm m m DNDbCa15 1520 20325 2532 323.540 400.25 250 50465 6580 805100 100125 12562.5150 150 7200 200 80.53 1992-12-25 JB/T 1733 1992 JB 1733751993-07-01 JB/T 1733 19922 m m DNDbCa250 250 9300 300 103.5350 350 11400 400 121.04450 450 13 5500 500 14 6600 600 18700 7008800 80020900 900 251000 1000101200 12001400 1400351.5141600 16001800 180040 2 16 DN 450 mm a DN 500 mm a 4 mm JB/T 1733 1992 JB/T 1733 1992*2 100044*880 1230 1/16 1/4 4,0001993 2 1993 2 1 500 1.00 http:/www.JB