HG/T 20592  法兰盖 BL 300-16 RFFr2Fhg=42.5H4F07c600-6@4F040 RF

bl300-16rfFr2Fhg=42.5H4F07c600-6@4F040 RF

PJ/SE 200(B)-16 RF Sch40S

Bl 100(B)-40 RFRFN=33)hgh40.1 R

PL 65(B)-10 RF

BL 3"-150 RF

BL 6"-150 RF

BL 150-300 RF

WN 20-600 RF

WN 6"-150 RF Sch60

PL 50(B)-10 RF050rR�6 l=23)120 C=36Р=3 RC0p0S