GB/T 12459  弯头 DN 65-Ⅱ-390EL186140F

DN 65-Ⅱ-3 90EL186140F

WN 15(B)-1500M H=H80s3/50FF6=3

WN400-300RFsR00FJ-s=0

wn25-300fm sch40 H1f

WN 150(B)-16 RF

WN 40(B)-40 RF S=41.C-FM 500-1.6Sch40S3M s=6S56 RF150rf sch40rjRFRFF

wn250(b)-63 g K=

WN125(A)-16RF

1 RF 450-0.6 RFГҘ Еҫwn25-1mpa