Manuacturers and Distributors of polymer concrete manhole covers & frames. Beneits of Polymer Concrete:-SABS approved-Upto 47% cheaper then cast iron.-No resale value.Will not get stolen like cast iron.-Grip,non slip surface.-Does not rust like any metal.-No painting required,no maintenance.-Carries a weight of upto 13.5 tonnes.-Easier to handle,due to lighter weight.-More than six times stronger than ordinary concrete