Kugwiritsa ntchito ndi mawonekedwe a dth pobowola zida.I. Kugwiritsa ntchito dth pobowola cholumikizira.Dongosolo lobowola dth litha kugwiritsidwa ntchito pobowola ndikukumba mabowo a chingwe cha rock nangula, mabowo a nangula, mabowo ophulika ndi ma grouting pomanga matawuni, njanji, misewu yayikulu, mitsinje, mphamvu yamadzi ndi ntchito zina.II....
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