1.I-Mortar 1) Ukuphucula ukufana, ukwenza udaka lula ukusebenza, ukuphucula i-anti-sagging, ukwandisa i-fluidity kunye nokumpompa, kunye nokuphucula ukusebenza kakuhle. 2) Ukugcinwa kwamanzi aphezulu, ukwandisa ixesha lokugalela udaka, ukuphucula ukusebenza kakuhle, ukuququzelela ukuhanjiswa kodaka, kunye nokuvelisa amandla ombane aphezulu ...
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