NB/T 47021  法兰 C-RF 1500-0.6/20δs=8h35d=175TK=73ampampa RF0070 RF M

1 CRF 1500-0.620δs=8h35d=175TK=73ampampa RF0070 RF M

RJ 50(B)-10RF7niM0MWN50- R/F125F

wn65(b)-100M/40Sf不80 S=4

BL150-63 m.6/5

PL320(B)-16 RF/s=F7/SC80 RF S=3

BL300-10 RFm00RFF60Sc

SO 400-150 RF4FM870S30h80=10=3/S150 RF Sch40S

bl80-10RF50 RF0A