... a kind of powder materials which is composed of ordinary Portland cement, selected quartz sand and many kinds of active chemical components ... . 5、100% compatibility with concrete, brick, cement mortar and stone materials, can construct cement mortar, paste tile etc.Main Index: Num ... must be slotted, then fill to level. 2.Confecting: water: cement 0.3:1 , use clean water, stir well mechanically at ...