HG/T 20592  法兰 WN 200(B)-25 FMN=500 п═r=0- L=60&F S=8F0Ss S=12 S

WN200(B)-25fmN=500 п═r=0- L=60&F S=8F0Ss S=12 S

WN 25(B)-63 RF A=34 N=48 D=115 S=�

PL 50(B)-16 RF0=72D=320 K=265 B

WN 450-150 RF S=3.5

wn80-300m sch40185K=15wnh h=65=18 K

PL125(B)-10 RF BB=-10 R10=91048 h=18pampampampampa

wn25-63Rfsc5/92-6=14rS