Testing of water for Chlorine Residual, Coliform & E.coli bacteria, Laboratory support, Repair, Preventative Maintenance, calibrations and qualifications, consultation

Masonry Contractors, Plumbing, Heating, and Air-Conditioning Contractors, Other Building Equipment Contractors, Cement Manufacturing, Iron and Steel Pipe and Tube Manufacturing from Purchased Steel

Paint and Coating Manufacturing, All Other Miscellaneous Chemical Product and Preparation Manufacturing, Cement Manufacturing, Metal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers, Electroplating, Plating, Polishing, Anodizing, and Coloring

Asphalt Paving Mixture and Block Manufacturing, Cement Manufacturing, Ready-Mix Concrete Manufacturing, Concrete Block and Brick Manufacturing, Concrete Pipe Manufacturing