HG/T 20592  法兰盖 BL 50-40 FF

BL50-40FF

SO 20-150 RF

SO 500-6 RF

WN 300-300 RF Sch80S

WN100-600 RF

PL500(B)-16 RF

WN 150b-10 RF

WN100-600 RF Sch40

WN15-150 RF

WN 300-150 RF Sch80Sff3-1991FMdF sch8000-60=273 TR½Sc16 RF=85 b=3250FBB0 RF RJ�ذ@5@3@0RFF300 SGS Sch10S440S0 RF0-1@0�