GB/T 12459  弯头 DN 50-4.590EL80F@4-185Rpammpam5

DN50-4.5 90EL80F@4-185Rpammpam5

WN600-16FM S=10

BL 80(B)-16 RF RF RF0RFFh

SO 450-150 FFS=3295Rm

WN50-150RFD=3945 &

PL800(B)-2.5rfJF150 RF Sc

so20-40T-50B)-6 RF0R900-0.2401

BL 100-63FMb1=322

LWN 24"-900 RJ Sch806 P3R7./�

wn40(B)-25 m99Sc0-150