GB/T 29465  法兰 FF 2850-4/1.3 RFRFampamp

5 FF 2850-41.3 RFRFampamp

WN50(B)-25M S＝6

WN25(A)-16RF008

WN600-25RJRRF BB-6@�ch80S0 RF Sch140rum.html

WN20(B)-25M

bl300(b)-25 m

pl65-16ff aa=81

DN 90×90×10-Sch160 TR

so 20-16 rf

3 B3=38.1*1.65 B=34.8mpamp;ampampampeqid=80ebfc4e000393e300000005