NB/T 47021  法兰 C-RF 800-0.6/12 D=80 K=55 L=12 d=40 B=19 A

1 CRF 800-0.612 D=80 K=55 L=12 d=40 B=19 A

so25(b)-16rf d=10 200A.-20510(=5FS=60RF140 s=6=068=4/C/k=2

47023 -t1200-1.085Sch40B1b=-R

so250(b)-16 rf b=3)-1

bl80-63 rf c=.pngcr60RFch80SFTf-1.htm

耳座 C3-0EL222 b=52 Su0016 RF0/505B)-0Sf-90 d=430æÂ