NB/T 47022  法兰 M 400-1.6/5CH40S=65-265C

3 B3 d=262m400-1.6/5CH40S=65-265C

WN 15-300 RF Sch4J1ذ²ز–ز³ذ¨ز±ذ²ز–ز³ذRF��/@-

so100(B)-300 RF S/âo.0B1=1,0060

WN 250-300 RF0 RF=156 dn=500 S/77023 rf100

WN80-150 RF Sch40F5ch Sch60M53600RFยฉรขยขรซล“F6FMmp

B