NF L19-046:1993 Aerospace series. Honeycomb materials with tubular cells, hexagonal, fibre glass, polymimide resin impregnated, oriented at plus over minus 45 degrees. Product standard.
1993NF L19-046:1993 Aerospace series. Honeycomb materials with tubular cells, hexagonal, fibre glass, polymimide resin impregnated, oriented at plus over minus 45 degrees. Product standard.