GB/T 12459  异径三通 DN 1000×1000×450-Sch120TR

DN 1000×1000×450-Sch120 TR

3 RF 500-2.5 δ0=8

WN 300-25 FM S=8 B=309

WN40(a)-150RF sch40-150F S=3.625 r

WN 350-150 RF B=334J Sch160FM6.5-150rjl250-4

PL50(B)-10FF b=RF d=2水线

DN200-PN16 PL/W-A RF

2 G 800-0.2520δ1=200=601=12ژFf4sF20325 R/F

BL600