HG/T 20592  法兰 PL 300(B)-16 RF5144

PL 300(B)-16 RF5144

IF 450-6 FF10S25-150RF0EL-

PL300(B)-16 RF

PL200(B)-16 RF168

WN 5"-900 RF Sch40mpa4

SO 3"-150 RF

PL100(B)-16 RF

WN 500-300 RF Sch40

HP-1

BL 2 1/2"-2500 RFc7x9srx316 RF=800�6Sch800SCH140RF11,Sch1036ArJ RFpaFRch40�-G