foreign documents (class /for ) miscellaneous processes ( / ) (class /for ) digests methods of plant-breeding and including chromosome multiplication (class /dig ) propagation of plant by cuttings (class /dig ) plant growth regulation by control of light thereon (class /dig ) treatment of plants and seeds...
treated concrete surfaces / impregnated surface / impregnated impregnated surface chemical treatment, as a result of which hydrophobic concrete surface is obtained. the impregnation substance does not affect the outlook of concrete, but ensures a more weather-resistant and more easily cleanable surface...