GB/T 12459  弯头 DN 550-Ⅱ-1245E3D

DN 550-Ⅱ-12 45E3D

wn65(B)-40RFsch55RJ0

bl50(B)-16 RF1000-1.00-1.010F1800fs00-1.6/F2w8468RF S=5

3 RF 300-6.4 δ0=10-=0S-1uF)be1

法兰pl65(b)-25rf/70

3 RF 900-1.DRF8F H-1gcadRF Sc RF5

bl600(b)-10m0--10 bl40 -16r

PL100- 25RF undefH0 Rh800pampam0

pl15