... cheap refractory cement made in China from a refractory cement factory, Zibo Qunhui Refractory Co.,Ltd is always at your service.Refractory cement also called Aluminate cement, Aluminate cement ... the water rigid gelled material.Aluminate cement is often yellow or brown, and gray.Aluminate cement main minerals become a calcium aluminate ... silicate (2, CaO SiO2), etc., is a kind of special cement.