HG/T 20592  法兰 WN 10(B)-10 T S=20

WN10(B)-10 T S=20

SO 10-150 RF)-4=

WN 10"-300 RF S=6

wn50-300RF S/)-10-1.0=8ch40s h03.

BL50(A)-150RF0-1 RF=3/

WN25(B)-16RFB=3-2.5

wn80(B)-16 RF0

pl250-16fm32 RF S=117F B B=91.7i

SO 600-150 RF D=927.1 N=781 B

PL80B)-6RFw84h40Sr0-1D=14439=Sch40 h=