HG/T 20615  法兰盖 BL 15(B)-150 RF so80(b)

wnbl15(b)-150 rf so80(b)

BI 800

WN 6"-150 RF Sch40S

SO 200(B)-16 RF

1 RF 450-1.0 δs=5

BL50-10 RF D0 rf= f1(

WN 50-1500 RF

PL15-25 RF50=-4/R

WN 300(B)-10 RF

BII 2800 RF0-Smch40s0=90ch40 S=65 RF=900 δn=14F�=12l=3.6�–-s/@SO100-rf s=60FS�ҝ