NB/T 47021  法兰 C-M 500-1.0=1202.ff=148 s=140 RF s20615n50-300

WN80-300FM

47021 c-m500-1.0=1202.ff=148 s=140 RF s20615n50-300

SO 80-300 RF g350-F1000-0m203 d=225 n=8 L=23 C

wn200(B)-10 RF b= C=260 Cd

DN150-PN10 SO RF Ⅱ

WN600-150 FF A=608-600b=5=

BL200(B)-25 RF S=8/ch=3.110

WN300-600 RJ1.

WN 32-160Rf0/8 H=98 H1