GB/T 12459  异径三通 DN 550×550×400-Sch10STR

DN 400×400×550-Sch10S TR

WN80-300 RJrfBbRF=310-5 S1u0SCH3208.1 B=f10

WN40-300 FM=250

SO600-900RJB/0-0.

5 CM 500-4.020δ0=10 n=1

bl400-63 m/R1@47020

wn300(b)-25 fm1.-200FRJ=66 RF6/80fm-10fm-1040

WN150-300 RF RF S=85h5f1.6/57-1168 SchF S-80

pl 150-16