... cement are as follows:Product Type1.Portland cement: P.1.52.5R,P.Ⅱ42.5RApplicable scope:overground and underground high stringent ... and freeze-thaw cycle.2. Ordinary Portland Cement: P.O42.5R,P.O42.5Applicable scope:Except aforesaid scope,also applicable for ... large volume concrete project.3. Composite portland cenment: P.C32.5R,P.C32.5Applicable scope:Ordinary industrial and civil architecture, real ...