HG/T 20592  法兰盖 BL 100-6 RFFï؟½ch0250-18.c3/ FF S

BL100-6RFFï؟½ch0250-18.c3/ FF S

PL 350(B)-10 RFF

WN80-300 RFSch40C

PJ/RJ 500(B)-10 RF

WN100-100 FM Sch00 FF Sch100

SO 50-300 RF

WN50(B)-160 FM8c r0f-s1=31HG206

SO 500(B)-16 RF

SO 500-16 RF0RF B=u=10

WN 600-150 RF/S=80.00-rf0/Fb1.020SiF R1/)-16rf