NB/T 47021  法兰 RF 1100-0.25 б‚Т•аˆаЃТ€аЎТ“аЃа•аЃТ‡

1 RF 1100-0.25 б‚Т•аˆаЃТ€аЎТ“аЃа•аЃТ‡

3406wn250-300rf0/5r5.02R1I 8P00

SP-8Sc-l R¼رڑ

HP-2 п╩Б■░п═п▀я≥п╩Б■░п

TH(Rc)25-900 RF�°п╡р╞с╗п╡р√рёп═р╟п═п├п═р

3 FM 800-2.5=3.