Izingxenye zokunemba namathuluzi okulinganisa azoguga ngesikhathi sokusetshenziswa, okuholela ezinkingeni zokunemba.Lawa maphoyinti amancane okuguga ngokuvamile awumphumela wokuslayida okuqhubekayo kwezingxenye kanye/noma amathuluzi okulinganisa eduze kwendawo ye-granite slab.