Irigi yokumba phansi, kungenzeka ukuthi awukaze uzwe ngalolu hlobo lwemishini, akunjalo?Kuwuhlobo lomshini wokubhoboza, ovame ukusetshenziselwa ukumba izimbobo zehange lamadwala, izimbobo zehange, izimbobo eziqhumayo, izimbobo zama-grouting kanye nezinye izakhiwo zokumba ekwakhiweni kwamadolobha, ujantshi, umgwaqo omkhulu, umfula, i-hydr...
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