主营产品：Production and sales: complete sets of environmental protection equipment, environmentally friendly plastic fillers, bioceramsite filter materials, water treatment filter materials, water treatment chemicals (excluding hazardous chemicals); sales of hardware and electrical machinery, instrument valves; research and development, design, installation, commissioning, Transfer of environmental protection equipment and materials; environmental protection technology consultation
主营产品：Application, agency and personnel agency recruitment for engineering survey and design, general contracting of engineering construction, professional contracting, labor subcontracting and other qualifications
主营产品：Sales, design, after-sales and technical services (excluding production) of swimming pool water treatment equipment, pure water treatment equipment, softened water treatment equipment, and sewage treatment equipment; sales of related water treatment chemicals (excluding hazardous chemicals). (If the above scope requires pre-approval or the state has relevant regulations, it must be operated with a license or relevant approval documents)
主营产品：Our main products: expansion joints, force transmission joints, duckbill valves, waterproof casing, rubber joints, expansion joints, compensators and other products
主营产品：Water treatment filter media, environmental protection filler, water purification chemicals, water treatment equipment accessories, aerator, water cap filter head
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