HG/T 20592  法兰 BLS 100(B)-16 FM0 RF rffC=104

bl(s)100(B)-16fm0 RF rffC=104

WN25-150 RF Sch40s)Scine600800B)-1 B=40.5-

PL 65(B)-16 RF b=5F=/rS=940aas

PL250b)-10 RFK=240 L1M30930(f D= RF SCH80

pl65(b)-16 rf b= b1251805R02a80B)51000h80h8mp

WN 500-150 RF B=488F6 RF S=66 RF

WN 100-300 RFFF00spa00R