HG/T 20592  法兰盖 BL 65-10 RF=140spampam1

BL65-10RF=140spampam1

BL 250-150 RF

B WN1000-150 RF1F22 rf1000-5605R8000S=12 s

wn100-100fm

BⅠ450-F(S) h=/(B)-16RF77/2510=46

WN 200-40 M��RF@ S FF

WN 20-600 RF20615N40- 40RF)

WN 200(B)-16 RF@p

WN 400(B)-10 RF S=6RJ

BI 700 h=1)-00s=15/620δ110 FF