GB/T 12459  弯头 DN 50-Ⅱ-Sch10S180ELRF k516 g@Rh-Sc

DN 50-Ⅱ-Sch10S 180ELRF k516 g@Rh-Sc

BL 900-16 RFF Sc

47022 C-FM 900-1.00mpampamp

PL1200B-2.5RF

SO40A)-40RFf/@bii 1000.0/18J.5 Rsc

BL 6"-900 SFMf scpampampampampampampwd&a

DN 15-Sch10S 90EL/ch400--F/S

WN50(B)-100 RF S=4

PL250(B)-40M5 S=4

PL50-