Sales of chemical raw materials and products (operating within the scope approved by the license for hazardous chemicals), mechanical equipment and accessories, water pumps, hardware tools, craft gifts, metal materials, electronic products, instruments and meters, lubricants, biofuels, wood chips, and wood powder; Industrial salt retail; Technological development in environmental protection and sewage treatment; Design and construction of sewage treatment projects; Sales, installation, and maintenance of water treatment equipment.
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Sales of chemical raw materials and products (operating within the scope approved by the license for hazardous chemicals), mechanical equipment and accessories, water pumps, hardware tools, craft gifts, metal materials, electronic products, instruments and meters, lubricants, biofuels, wood chips, and wood powder; Industrial salt retail; Technological development in environmental protection and sewage treatment; Design and construction of sewage treatment projects; Sales, installation, and maintenance of water treatment equipment.