HG/T 21574  吊耳 SP-61

SP-6100cF-16 Rch40 s=3.0F= RF30-5

HG/T 20592 法兰 WN 150-16 RF0

SO 150-150 RF FM00 rjF016rf0f

WN 40(B)-100 RF

SO 150(B)-16 RF-0RF2.6…

WN20(B)-40Mch140chS5 C4.F Sch80S�¬Ã‚¦&

WN 65(B)-100 M

PL 80(B)-16 RF

BL250(B)-16 RFSch40S S=5 B=am