HG/T 21574  吊耳 SP-30

SP-3023rf150 RF B=3-2

WN80-16RF16u005 RFF S=8.56=5RF0a-1=6.340-1.0/45/F0 r

BL 20-900 RF7

WN 40-150 RF Sch8-16

DN 20-Sch40S 45EL0

pl65(b)-16 rf00-F-1.6/4

TPB-1h6R RFSch5-600RF57mRF0=4RFF40s K=735

JWN 80×125-150 RF

WN65a)-150RF0-25rfrfF S)-0

WN80-15