NB/T 47022  法兰 G 700-1rS520ch40=45 D=150 R=6

2 g700-1rS520ch40=45 D=150 R=6

BI 2500 L40-40S/s= FF20MJRF0)-16rfr/RF0 RF5F=774056

wn40(B)-10RFcch80 B S=5-150 h=95100

wn100-150 ffsF

WN20-150 RF H=50 Shc404096000

wn80(B)-16 RF3 H=1/9° pl15

WN150-300 RF 14.27102fr

PL450(B)-10 RF00RF Sc50-10 K=

wn40