GB/T 12459  弯头 DN 20-Sch2090ESSc r0/80-165F

DN 20-Sch20 90ESSc r0/80-165F

PL700-6RFH8

BL150(B)-63M-0� C=4-mpa

PL 15(B)-10 RF B=G1/data/com

SO 15(B)-25 G/.8t26/b=3f

SO300-10 RFabl-2H40S

PL 100(B)-25 RF615-20091

WN 150B-150 RFrf fm.5F-2ch4.8h=106R

WN65B-25M9F.6/10 R3bL500(B)-16m B=2Mf000-s0S/