GB/T 12459  同心异径管 DN 40×32-Sch40SRCF3..5E=h10-0.6 δ=78 h=152g/1

DN 40×32-Sch40S RCF3..5E=h10-0.6 δ=78 h=152g/1

bl15(b)-16RF b=3-1.6/RF1-152-2009-1.6/80 RJ6f

wn50(b)-63 fm s=5 d=180F C=1

SO 100(B)-16 RF4000-2.56 RF S=80 RF S=3 WN40

BL300-300Tch40RF F=3b/=200 hH=

WN80-150 FM Sch-4/

APA-2h=64 h=1641R2=1400.5