HG/T 20592  法兰盖 BL 300-10 RF HG/T 205920rf é‡Â�

BL300-10RF HG/T 205920rf �

47065.3 B6 Ro=320

WN 50(B)-25 RF

WN 32-25 RF Sch40S

SO 25(B)-40 M0RF3/50

WN150B-25RF S=10

PL 125(B)-10 RF D=240 b=3

SO 32-150 RF

LWN20-150 RF SCH8025(b) S=8

BL100-16 RFh40S��4 HG/T 20615-2009eader8.5 S=3.56@