HG/T 20592  法兰盖 BL 150-10 RF sch40fC1F5/6

BL150-10 RF sch40fC1F5/6

B WN 28"-300 RF B=Sch40

wn40b-160fm8-215chn400-600rj

WN40-1500 RJ50925/585-150 RF2-6

so15-300t=15

wn25-100 rf rf

SO 150(B)-16 RF23 RF1000

WN450-16RFSch40pampaf R

BL 80-150 RF PL RF Ⅱm6 rf dB500n S=3000175 δs=540S16.5