HG/T 20592  法兰盖 BL 250-10 RF00-F-15r= D=/)-16 rf s=6ã/40S H=

BL250-10RF00-F-15r= D=/)-16 rf s=6ã/40S H=

wn 25-300 rf b=25900RF B=94CHSch16000-40=c

3 B5Smp047s=4400 RF5(a)rC=)-16=16 m=12a

WN50-900rjrfb=/ch60

SO 15(B)-10 RF D=94 N=60.66 B=50 C=11.5

BL15-160T2RF S=1 RF

wn20(b)-1500rf s=1836-10 RF S=8=35