HG/T 20592  法兰 PL 65(B)-16 FF n=000u00c6/public/wx/data

so50(B)-25 m/л▓Рђбл

WN 500(B)-40 RF S=123- RF S=45 R

WN 150-600 RF c

WN1050-300 RF B=10S Scc

BL150-25RFRFF=15 RF S=12F BL80-16 RF S=1/

WN15-1500 T Sch40)RF015RFSc

PL 95-6 RF

PL200-16 RF0

WN15-100 RJ RF/8-/b= S091=

WN 20B)-16RF SC.F/4/4-16RF-2/