HG/T 20592  法兰盖 BL 125(B)-25 RF m16rfSCH80S

bl125B-25rf m16rfSCH80S

SO 300(B)-40 RF

WN1 1/2"-1500RFSCH40S

1 FM 500-0.6 δs=6

ABL64-300 RF00-6.4/92-160 δ0=16J M@RF@0 LM RF20 RFAFF ScF&@l

WN 400(B)-10 FF S=12F86@RF4R Sc0S�rF0

WN 50-150 RF Sch40

WN 350-600 RF S=1400 RF

PL25(B)-16 RF

pl50(