HG/T 20592  法兰盖 BL 600-6 RFRF S0/5 RF Rr416 rfF)-6

BL600-6 RFRF S0/5 RF Rr416 rfF)-6

so400(b)-10 gb100RF1005030S≥55 Rh1RF@0-ch4. S0am

WN25-150 RF SF s009-120 S=880-90

Bâ…،2500110 RFff B0-s/@so100(b)-16 rfh=1

SO 150b-300 RF0RF b=3B5أ‚آ

WN 1/2"-300 RF Sch40S

hg/t20615 wn20-600rf Р