NB/T 47022  法兰 T 650-0.25/20δ1=

2 T 650-0.2520δ1=

pl600-25fm30 RF0 RF SCH40rfh.6-PL ff1a-

47065.3 C5RFRFRF b=4*800-1.00 sch..0rf.0/-d=1254FFS=6-300 RF

SO20(B)-16 RF b=0103Â

DN25*15-5 RC

wn500(b)-16 rfM6RF=2

BI 1200 h=200=16 hf s=4.5 hg

SO10-6FF-1.6736RF)-10RSchch

2 T 550-1.620δ