HG/T 20592  法兰盖 BL 80-63 RF Sch60Srfæ�TD/JRF- R0rfT206150-15SS2-2009=8b)

bl80-63 RF Sch60Srfæ�TD/JRF- R0rfT206150-15SS2-2009=8b)

1 RF 1200-0.25 δs=8

DN15-PN16 PL RF I400钢f1=3-FF

WN600-1500RjFRF/

WN 150-150 RF Sch40S

WN50-2500RJ

WN 800-300 RF

LWN 250-600 RF

BL 40-100 RF

SO125-16RF�RFJ-Sch s=1=≥6/=2 RF S=3 S=3f S=8