GB/T 12459  偏心异径管 DN 450×15-Ⅱ-5RE

DN 450×15-Ⅱ-5 RE

SO400(A)-25 rf659-125/0-FRF10RFSch3RfFwRFh80RF5

WN 150-600 RF1802.5f

so500(b)-16fmR.0

BI1100/2 rf

wn150-900RJRFd=5-c 0--10F�-100-4.0/144-.0/Fch40F- R

法兰wn80-2500rjffRScsFahtml-2.5/65

BL80-150RF0RFfb/ C=1

DN 200-6 90EL

WN25B-