SEALED TIGHTER THAN DUCK'S BUTT STERLING BEST SEALED

Ducts and pipes of metal for central heating installations; Ducts of metal for air-conditioning installations; Ducts of metal for ventilating and air-conditioning installations; Ducts of metal for ventilating installations; Ducts of metal, for central heating installations; Metal air conditioning ducts; Metal heating ducts; Ventilating ducts of metal