Bituminous mixtures based on natural asphalt, on natural bitumen, on petroleum bitumen, on mineral tar or on mineral tar pitch (for example, bituminous mastics, cut-backs)
Meascáin bhiotúmanacha atá bunaithe ar asfalt nadúrtha, ar bhiotúman nádúrtha, ar bhiotúman peitriliam, ar tharra mianrach nó ar phic tarra mhianraigh (e.g. maisteoga biotúmanacha, gearrthacha siar)