NB/T 47021  法兰 C-RF 0-1.6/009bl154

BI900-F(S)ch80S RC120t sch40F B=41 C-RF0-1.6/009bl154

BL 1/2"-150 RF80SkerF shc4H40 H-563.5-16)=sTB)10 δ1Sch4

PL125(B)-10 RF BB=70 D=243b)-16 rf s9��

WN150(B)-600RJch4040 RF Reqid=ccc586b000040d0900000004646c7500F

WN65(B)-40 MS=670.6/

3 fm1