GB/T 12459  弯头 DN 250-390EL

DN 250-3 90EL

23FM400-2.5

BI200SF0.4RFrB)

WN150(B)-100M S=10

BL 40-150 RF

WN140-16RFa0@4

SO 80-150 RF

WN150(B)-10 M S=10

DN700-PN6 PL RF Ⅱ

WN 150-150 RF Sch40S�0F.5 RJ-RF�pampam0.52@��0@S5 RJr40300 RF/30-B-161buG/0-1.0/70-800hF7.5