GB/T 12459  弯头 DN 40-490ELac-RC��5

DN40-4 90ELac-RC��5

WN50(B)-40 RFSch8080150(15tml4F092S� S SM-155pampampampamp&@t.5 RJ

PL900(B)-40RF40-592B)-4F26s RL=0 h=1201640RFFf B=101

BL80-150RFch40S WN350)-=F.

PL350(A)-6FF

DN1600-PN10 WN RF A

wn32(A)-25FM

WN80-600T5 S5sch40b

WN200-63RF