NB/T 47065.1  支座 A 4533

47065.2 A4533

WN 80-300 RF Sch40S

DN 600-Ⅱ-11 CF5rf40RF2/

WN 4"-150 RF Sch5755

47023 FM400-1.0/38-99

WN 2 1/2"-150 RF Sch40S

BL 25-150 RF

WN 2 "-300 RF

BL 50-16 RF41

WN 1800(B)-6 RF S=5.516/p0 rf/RJ R1caRF ScC0sF RF.5 RJ R1 Sch80c RF