Ndi mtundu wa AMPS polima based retarder.Ikhoza kutalikitsa nthawi yowonjezereka ya slurry ya simenti ndi nthawi yabwino.Itha kubweretsa mapindikira abwino okhala ndi ngodya yolondola komanso osakhudza kukula kwamphamvu.
Nthawi yotumiza: Aug-06-2019
Nthawi yotumiza: Aug-06-2019