HG/T 20592  法兰盖 BL 450-10 RFA-600rf b=F-10R

BL450-10RFA-600rf b=F-10R

wn 25b-16 RF

NB/T47023 FM800-4.04A=-1-6rf5SDL20405350- K=362A)-6 RF aa0(B)-

wn15-600G5 пҝҪampampampnb66ҡВ¬

so200(b)-25 rf bbmpampeqid=80ebfc4RF)-6 B=139.50TF0181

SO 600(B)-10 RF S=8u0

WN 250-40 FF)- K=1274 ff

SO 80(B)