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PCE
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CPC Subgroup
E04D 5/02

of materials impregnated with sealing substances, e.g. roofing felt

Full Title

Roof covering by making use of flexible material, e.g. supplied in roll form (using stiff sheets E04D3/00; gravelling of flat roofs E04D7/00 ; built-up roofs E04D11/02) > of materials impregnated with sealing substances, e.g. roofing felt