Four-ply heating or diesel oil storage tank - is composed of poly-concrete jacket, fibre-filled plastics liner, foam or fleece interliner and innermost plastics tank

摘要

Tank has single-piece, glass-fibre-reinforced, plastics liner inside a jacket of resin-bonded grit (poly-concrete), according to the parent patent. In this addn. the liner is itself fitted with an additional glass-fibre-reinforced, plastics tank, with an air-permeable intermediate layer between them. This interlayer is of foam, polypropylene fleece etc.