HG/T 20592  法兰盖 BL 300-10 RF S=10fh=342b=5

Bl300-10RF S=10fh=342b=5

47023 fm900-4.0/86-190 цёs=66

WN 150-150 RF S=5100fmhl S0rf2ce/Sch700-1.6/1=135219-91=41

wn20-100 mfrf/F510 D=06)-4RF2RF1000-40 RF S=1½–

LF/SE 80-150 RF Sch10Sch40SF-0.609R810 RF-16RFRFrf-16RF-2=110F15H200900 R-16 RF S=6