construction;worker;concrete;grind;grinding;surface;epoxy;polyurithane;floor;flooring;living;room;home;modern;technology;indoor;clean;industry;work;damage;coating;repair;builder;building;interior;cement;production;tool;equipment;development;industrial;home;house;renovation;labor;level;machine;material;method;modified;power;professional;people;working;polishing;site;engineering;external;glowing;hardener;