Connecting flue pipes for wood stoves, made of steel, high thickness, welded and internally and externally covered with PORCELAIN ENAMEL. The application of the innovative PORCELAIN ENAMEL coating called TERM® allows ALA SpA to assure, for ALA SMALTO top smoke ducts, the maintenance of the colour, a bigger resistance to acid condensate, to high temperatures, scratches and rust. The particular coating confers a special opaque effect that perfectly meet the new aesthetic requirements. Available in matt black and grey colours. Certified according to the EN 1856-2, EN 1443 rules with N1 pressure class, resistant to high temperatures T600 and V2 corrosion resistance class. Total thickness 1,5/1,6 mm.