General Projects: Environmental Protection Special Equipment Manufacturing; Environmental Protection Special Equipment Sales; Waste Treatment Equipment Manufacturing; Waste Treatment Equipment Sales; Sludge Treatment Equipment Manufacturing; Dust Removal Equipment Manufacturing; Coal Combustion Flue Gas Desulfurization and Denitrification Equipment Manufacturing; Coal Combustion Flue Gas Desulfurization and Denitrification Equipment Sales; Environmental Consulting Services; Packaging Special Equipment Manufacturing; Packaging Special Equipment Sales; Special Equipment for Processing Agricultural and sideline Foods Manufacturing; Special Equipment for Processing Agricultural and sideline Foods Sales; Papermaking and Pulpmaking Special Equipment Manufacturing; Papermaking and Pulpmaking Special Equipment Sales; Mechanical and Electrical Equipment Manufacturing; Mechanical Equipment Sales; Mechanical Equipment R&D; General Mechanical Equipment Installation Services; Electronic and Mechanical Equipment Maintenance (excluding Special Equipment); Environmental Emergency Equipment Sales; Mechanical Parts and Components Sales; Gas and Liquid Separation and Purification Equipment Manufacturing; Gas and Liquid Separation and Purification Equipment Sales; Furnaces, Melting Furnaces, and Electric Furnaces Sales; Sales of Special Instruments and Meters for Environmental Monitoring; Atmospheric Environmental Pollution Prevention and Control Services; Manufacturing of Special Instruments and Meters for Environmental Monitoring; Goods Import and Export; Technology Import and Export