Frequency energy savingordinarythe ROUNDSTUDRUBBERSHEETfundamentallyovercomethedrawbacksofthetraditionalrubberplate.ROUNDSTUDRUBBERSHEETspeedalso followedchanges inthetrafficsystem needschange, allowingthe discharge of oilpumpflow changes.The ROUNDSTUDRUBBERSHEETAs the motorandpumpcoaxial,thepumpwill berated displacement ofthe oilsuckedintothehydraulic system.The ROUNDSTUDRUBBERSHEETwhenpumpflow is less thanthesystem needs toprovideflow,excess oilwill beback,this is bound towaste.