HG/T 20592  法兰 PL 20-16 RF009B=rf s=3/u01

PL 20-16 RF009B=rf s=3/u01

wn200(B)-25FM c-r

WN 200-300 RF B/8m

pl25-25 rjS=3.56 RF0a3

47023 FM 2100-1.65b-10rf

PL400(A)-6 RF S/1=1S

WN 50-150 RF Sch40S

PL600B-16RF b=5 D=16

WN250-300 RF S=

WN4"-150 RF s1606�аБт•Ÿа‘т”€ТАб€т–‘�