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In 1940, "Rex" gave birth to China's first pH meter and first glass electrode, marking the birth of Chinese analytical instruments. As the first professional manufacturer of analytical instruments in China, "Rex" has been focusing on the innovation and accumulation of electrochemical analysis instruments with more than half a century. "Rex" has unique advantages and status. The product categories are constantly expanding and the technical level is increase. "Rex" has more than 100 kinds of electrochemical analysis instruments, sensors and application solutions, including all kinds of instruments, such as laboratory, online and on-site testing, taking the lead of the domestic electrochemical analytical instrument industry and catching up with the international advanced level.

Qingdao Yihua Environmental Protection Co., Ltd. is located in Qingdao, Shandong Province, China, specializing in the purification and improvement of sewage and atmospheric environment engineering, the company has an excellent professional technology research and development team, equipment manufacturing and construction personnel team. Adoption of 6S management mode, has been ISO9001 certification, effectively ensure a stable supply capacity. Since its establishment, the company has established strategic cooperative relations with the United States, Germany, Japan, South Korea and Taiwan and other international well-known enterprises, and has carried out research and development work with a number of well-known universities and research institutions in China. The company is an environmental protection industry engineer.

Qingdao Yimei Environment Project Co., Ltd. Was set up in 1988. Our company is located in Jiaonan City. We have a production area of 15, 000 square meters and a workshop building area of 36, 000 square meters.

Zhongke Huarui (Shandong) Environmental Technology Co., Ltd. is located in Weifang City, Shandong Province. The company specializes in the R&D, production, sales and service of treatment equipment for medical wastewater, domestic wastewater, industrial wastewater, aquaculture wastewater and other types of sewage. It is a comprehensive manufacturer and service provider of wastewater treatment equipment with leading technology in China.

Shandong Grenorth Environmental Technology Co., Ltd. is an innovative technology enterprise. The company has a team of professional technical talents, engineers, sales and after-sales service personnel with innovative spirit. With continuous exploration, research and application of advanced technology, the company has entered a new stage of development. Our company can provide a complete set of services from scheme design, production and development, installation and commissioning, technical training to after-sales service according to the actual needs of customers. Satisfied the needs of users from all walks of life and received widespread praise. The excellent product quality makes us dare to promise customers: The product has a "one-year warranty and lifelong maintenance", and customer satisfaction is our pursuit.

Our company is a high-tech enterprise specializing in the R&D, design, production, and sales of environmental protection equipment. We are committed to providing efficient, energy-saving, and intelligent pollution control solutions for industrial, municipal, and various environmental projects. Our business spans environmental sectors including wastewater treatment equipment, sludge treatment equipment, and exhaust gas treatment equipment. Leveraging advanced technical capabilities, extensive project experience, and a comprehensive after-sales service system, we have become a leading supplier of environmental protection equipment, empowering clients to achieve green and sustainable development. Our company boasts a professional team comprising environmental experts, engineers, and technical personnel. We adhere to innovation-driven development, collaborating with multiple research institutions and universities to continuously optimize product performance and enhance treatment efficiency. Our equipment is widely applied across industries such as chemical, pharmaceutical, food processing, electroplating, textile dyeing, and municipal wastewater treatment, earning extensive customer trust through its stable and reliable quality.  

Zhucheng Hongli Shengde Environmental Science and Technology Co., Ltd. is a high-tech enterprise integrating production with research & development, which is established by introducing the technology of French-based Alstom Environmental Protection Company.

JIDE Ltd is a leading manufacturer and supplier of industrial measurement instruments, dedicated to providing high-quality solutions for factory owners, engineers, and other professional B2B clients around the world.

Weifang Hengyuan Environmental Water Treatment Equipment Co., Ltd. is Founded in January 2011, is a hightech manufacturing enterprise integrating R&D, design, production, and sales of water treatment and disinfection equipment. With its own standardized workshop of over 30, 000 square meters, Hengyuan has received numerous accolades, including being recognized as a National Environmental Protection Equipment Manufacturing Industry Standard Enterprise, a National High tech Enterprise, and a key enterprise in the National Water Conservancy System's Bidding Product Procurement Catalog. Hengyuan products include: Wastewater treatment equipment, water purification equipment, RO reverse osmosis equipment, sodium hypochlorite generator, ozone generator, chlorine dioxide generator, flotation series, ecological toilet series, sludge treatment series, and supporting water treatment engineering series. Hengyuan possesses large scale CNC hydraulic shearing machines, large scale CNC bending machines, fully automatic submerged arc welding machines, fully automatic electric welding machines, laser engraving machines, and other automated production equipment, enabling it to produce precision water treatment equipment. Hengyuan technical team of over 40 professionals, possessing Class II qualifications in environmental engineering contracting and building electromechanical installation engineering contracting, 11 invention patents, 1 design patent, 40 utility model patents, 6 software copyrights, 2 scientific and technological achievements, 40 water-related permits, and 18 disinfection registrations. It has obtained CCEP environmental protection product certification, CE certification, EAC certification, and ISO certification. Hengyuan provides comprehensive professional solutions tailored to the specific circumstances of different projects and customer needs including integrated services such as site surveys, process design, equipment manufacturing, engineering implementation, final acceptance, and intelligent operation and maintenance. Service areas include: Municipal water supply, municipal wastewater treatment, rural wastewater treatment, medical systems, highway systems, scenic areas, farms, slaughterhouses, chemical plants, etc., industrial circulating cooling water, greywater reuse, and high concentration wastewater. Upholding integrity and craftsmanship, Hengyuan adheres to the principle of "achieving success for customers and employees, " striving to become a comprehensive water treatment solution provider and empowering the environmental protection industry.

With 30 years of dedicated experience in the gas industry, Anqiu Heng'an Gas Plant is a professional and integrated supplier of gases and gas equipment based in Weifang, Shandong, China. All our products strictly comply with global authoritative standards including CE, ISO, DOT, FDA and GB, ensuring consistent quality and full cross-market compliance.

Headquartered in Suzhou Industrial Park, China, Yosemite Technologies designs and manufactures water quality monitoring equipment. Combining optical sensing and mobile internet technologies, Yosemitech brings innovative and cost competitive solutions to global water quality monitoring market. Yosemitech provides smart dissolved oxygen sensors based on state of art luminescent lifetime technologies. With different configurations intended for both field and laboratory uses, our products are ideal for measuring dissolved oxygen in wastewater, drinking water, aquaculture and general water quality applications.

Yangzhou Pujiang Environmental Protection Technology Co., Ltd. Locates in Yangzhou, which is very close to Shanghai, China. With the beautiful scenery, the transportation here is very convenient due to the closeness to Beijing-Shanghai and Yangzhou-Liyang highway, With such advantages, PJEP has become a professional environmental protection enterprise combined with product sales, technology research and development, production and manufacturing, engineering installation and debugging. Pujiang has strong manufacturing capacity, first-class workshops and many processing facilities. Pujiang always regards product quality as our life and we have established a complete process control and management system from product research and development, raw material procurement to manufacturing, and quality inspection. Pujiang has focused on producing environmental equipments including sludge treatment equipment and sewage treatment equipments.

Through the accumulation of years of industry, we hope that through our efforts to bring China's good water treatment products to the world, China's water treatment environment, relatively more comprehensive, more severe. Therefore, we are confident to provide better service and product prices. We supply metering pumps, water quality instruments, flow meters, water pumps, etc. Our professional ability in the water treatment industry will also provide better technical support to our partners.

Shandong Hongke Hydraulic Equipment Co., Ltd. is a professional OEM/ODM manufacturer with over 15 years of industry experience, specializing in water treatment equipment, wastewater treatment systems, pumping stations, and intelligent water supply solutions.

Shandong Longantai Environmental Technology Co., Ltd. Was established in 2005 and is one of the national high-tech enterprises focusing on comprehensive treatment of industrial wastewater. Over the years, the company has accumulated a variety of experience in the pretreatment and advanced treatment of refractory industrial wastewater.

Daruifuno Environmental Technology Co., Ltd. is headquartered in Suzhou City, Jiangsu Province, China, with an advantageous geographical location, close to Shanghai, in the middle of the Yangtze River Delta, with convenient water, land and air transportation.

Chongqing Fandun Environment Project Co., Ltd. Was set up in 2014, located in west  new District Chongqing City, with a workshop building area of 5, 000 m2 and more than 30 kinds of treating machinery. We are a member of Chongqing Environmental Protection Industrial Association, have 100 staff members works, including 20 engineers and technicians. Since the establishment, we are always committed to environmental protection which includes environmental protection equipment design and fabrication, water treatment technological development, engineering construction and technical service.  

NOBOTECH is a high-tech group specializing in the design, R&D, production, sales, and service of environmental monitoring solutions. The company has offices in Shanghai and Guangzhou, with a factory and R&D center in Nanning, Guangxi, covering an area of over 3, 000 square meters. We focus on the independent development of intelligent analytical instruments, integrating technologies such as the IotNobo IoT platform, cloud services, and AI agent models. Our products measure parameters including pH/ORP, dissolved oxygen, conductivity, residual chlorine, ozone, turbidity, COD, ammonia nitrogen, total phosphorus, total nitrogen, chlorophyll, blue-green algae, color, air pressure, wind speed, wind direction, soil temperature and humidity, and soil NPK, etc. NOBOTECH has built a comprehensive solution system for scenarios like water quality monitoring, meteorological monitoring, soil moisture monitoring, and scientific research, providing full-chain digital support for urban governance, ecological protection, industrial production, and public health.

MADSUR is a modern production-oriented company specializing in the research, development, production, and sales of intelligent instruments, water quality analyzer instruments, COD analyzers, ammonia nitrogen analyzers, online suspended solids monitors, total phosphorus analyzer, online water hardness monitors, online dissolution monitors, online residual chlorine monitors, total nitrogen analyzer, multi parameter water quality monitors, online turbidity monitors, and online monitoring equipment. With a comprehensive and scientific quality management system, we consistently deliver high-quality products and technical support, along with reliable after-sales service. Our company primarily focuses on technology development, technical consulting, technical services, technology transfer, and the production and sales of optical equipment, water quality testing equipment, as well as the fields of intelligent technology, automation technology, optical technology, and detection technology. Engaged in the import of goods and technology. We have a professional product and sales technology team, with businesses covering multiple countries and building a global business and service network.

Firstrate Sensor Co., Ltd., is a hight-tech joint venture specialized in researching, manufacturing, and sales of sensors. Our products include Pressure Transmitters, Temperature transmitters, Liquid-level Transmitters, Wind Speed and Direction Transmitters, and Intelligent Control Instruments. They are widely used in the field of aviation, aerospace, national defense, military project, engineering machinery, railway, urban railway system, automotive electronics system, HVAC, air compressor, textile, petrochemical, coal mines and other industrial automation control.

HAOMAI Electric Power Automation - Expert in Relay Testers & CT AnalyzersCompany OverviewWuhan HAOMAI Electric Power Automation Co., Ltd. (brand: Relaystar) is a leading manufacturer of relay protection testers, CT analyzers, and power testing equipment. Established in 1999, HAOMAI specializes in high-precision devices for utilities, substations, and industrial power systems.

Qingdao EVU Environmental and Engineering Equipment Co., Ltd. is of scientific research design, equipment manufacture, installation, commissioning and training services as one integrated technology-oriented enterprises in water treatment industry. It is holding by Qingdao Spark Textile Machine Co., Ltd which is a national Spark Industrial Group, national second-level and large-scale comprehensive enterprise group in China.

Weshine Electric Manufacturing Co., Ltd. Founded in 2013 with a registered capital of 80.5 million, is a modern high-tech enterprise specializing in the research and development, production, sales and service of power system automation devices and test instruments The company has strong technical force and complete testing equipment. The enterprise covers an area of 1200 square meters, including 800 square meters of production workshop. The company now has 98 employees, including 30 engineering and technical personnel and 4 safety supervisors in the production process, the company gives full play to its technical advantages and strictly controls the quality, effectively improving the technical content of the products and the reliability and safety of the products. The products have been tested by the national authoritative department, and the technical indicators have reached the national standards. The company in line with the professional, innovative, integrity concept and customer first service attitude, continuous improvement, strive to develop, and work together with domestic and foreign counterparts to create a better tomorrow. We are looking forward to cooperating with you sincerely and making great plans together.

Henan Lihuaquan Environmental Protection Technology Co., Ltd. Was established in Zhengzhou in 2018. It is a high-tech environmental protection enterprise focusing on difficult industrial wastewater treatment. It integrates process research and development and design, non-standard equipment manufacturing, general engineering contracting, debugging and operation and maintenance, and environmental protection plan output. The company adheres to the mission of "inheriting the land of China and committing to green mountains and green waters", and takes technological innovation and independent intelligent manufacturing as its core to help green and low-carbon transformation of various industries.

Based in Yantai, Shandong, our company is a leading enterprise specializing in manufacturing instruments and equipment parts. Focusing on these two core businesses, we have laid a solid foundation through business integration. Our technical team integrates process experts in equipment parts and R&D backbones of manufacturing instruments, achieving complementary advantages.

Xi'an Gavin Electronic Technology Co., Ltd., headquartered in the State-level High-tech Industrial Development Zone in Xi'an, is a high-tech enterprise dedicated to the research, development, manufacturing, sales, and service of sensors, transmitters, and related instruments. Since its establishment, the company has consistently taken customer needs as its guide, talent development as its core, and industry progress as its foundation. As the company continues to grow, we actively expand our product lines, integrate industry resources, develop new e-commerce models, and collaborate with leading enterprises in the industry to provide high-quality products and solutions to customers worldwide.

Shanghai Dubhe Environmental Protection & Technology Co., Ltd (DUBHE)1. Company OverviewDUBHE is a leading high-tech enterprise dedicated to designing, manufacturing, and distributing advanced wastewater treatment systems and environmental protection equipment. Since our inception, we have combined 20+ years of engineering expertise with cutting-edge technology to deliver reliable solutions for industrial, municipal, and agricultural sectors worldwide.

HC Flourish Industry Group Co., Ltd., established in 1998, specializes in water treatment and waste water tretment equipments msnufacturing and sale and developtment, including sludge treatment equipment such screw press sludge dewatering machine, belt press or belt sludge thickener, sludge scraper for seidmentation tank, dissolved air flotation, lamella settler tank system, dosing station, mechanical screeen, sludge scraper, waster water treatment plant, sand trap, screw conveyor submersilbe mixer, aerators, sewage treatment plants system, screw compactors, screw conveyors, sludge thickeners, sludge scprapers, mechanical screen, sand -water seperators, rotating drum screens, sludge scrapers, waste water clariffiers for sedimentation tank, municiple waste water treatment, river water treatment, animal manures dewatering, and any waste water treatment, autmatic water filters, rotary drum filters, drum screens, bar screens and so on. With great efforts of over 20 years, our products has improved and reached the international level and have been exported abroad for amore than 22 years.

Qingdao Oyang Machinery Equipment Co., Ltd. is established in Qingdao High-tech Zone. It is an engineering technology enterprise with a professional R&D team and rich experience in pollution control. By using the Internet and advanced detection technology, the company integrates design, construction, engineering, operation and management with the development of smart city, realizes the informatization and digitalization of pollution control, and forms a complete set of waste gas and wastewater treatment system and environmental housekeeping management system.

Shandong Wanze Shengshi Environmental Protection Technology Co., Ltd., located in the beautiful kite city Weifang, is an environmental protection technology company specializing in environmental protection engineering and equipment research and development, sales, installation, commissioning, after-sales and providing customers with overall solutions for sewage treatment. The company mainly produces: Sewage treatment equipment, (chemical method, electrolytic method) Chlorine dioxide generator, Sodium hypochlorite generator Buried integrated sewage treatment equipment, new rural sewage, sewage treatment station, livestock farm sewage, slaughterhouse sewage, food factory sewage treatment equipment and other environmental protection water treatment equipment. The company's business scope covers livestock farm manure anaerobic fermentation biogas project, food waste recycling treatment project, sewage treatment project, biogas desulfurization purification project, Manure project, odor gas treatment project, etc.