1993201-300 peopleManufacturer/Wholesaler/Trading Company
Zhejiang Longda Water Technologies Co., Ltd., established in 1993 and formerly known as Taizhou Longda Copper Industry Co., Ltd., is a premier manufacturer and wholesaler specializing in high-performance brass valves and plumbing components. Headquartered in Yuhuan, China, the company operates a massive 28,000-square-meter production facility equipped with over 360 sets of advanced machinery, including CNC lathes, multi-shaft special CNC machines, and automated assembly lines. With a workforce of approximately 300 employees, including a technical force of over 50 specialists, the company provides comprehensive one-stop solutions from R&D and forging to precision machining.
The company is a recognized leader in lead-free brass technology, being one of the few forgeries in China capable of processing ECOBRASS C69300. Their extensive product portfolio includes brass ball valves, angle valves, PEX fittings, check valves, gate valves, gas valves, hammer arrests, and radiator valves. These products serve critical roles in flow control, water treatment, HVAC, and thermo-sanitary industries. As a major OEM and ODM partner for international brands, they offer customized co-engineering services to meet specific client drawings and technical requirements.
Zhejiang Longda maintains rigorous quality standards, holding ISO 9001 and ISO 14001 certifications. Their products are engineered to meet global compliance standards, including cUPC, UL, CE, CSA, NSF/ANSI 61, and NSF 372. With a strong export focus, the company ships 99% of its production to international markets across North America, Europe, the Middle East, and Africa, maintaining a reputation for reliability and technical excellence in the global water technology sector.
OEM manufacturerOffers OEM services for customized brand manufacturing.
ODM manufacturerProvides ODM design and manufacturing solutions.
Product customizationOffers full customization for design and features.
Established brandFounded in 1993, with over 20 years of industry experience.
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Products
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Average Price
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MOQ Range
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Lead Free Angle Valve Dual Outlet
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Lead Free Angle Valve (Straight Pattern)
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Lead Free Ball Valve Reduce Port
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Brass Ball Valve
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Gas Valve
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Heating Valve
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Check Valve
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Brass Ball Valve
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Brass Expansion Brass Fitting F1960 ProPEX Brass Elbow with Drop Ear for Pex a Pipe with CUPC Certified for Drinking Water
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Lead Free Brass Pro Pex Ball Valve F1960
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Brass Low Lead Free Hose Bibbs
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CUPC Certified Press X MPT Lead Free Brass Ball Valve ,Full Port Bore LF Brass Ball Valve
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Customers
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Certifications
ISO 9001
5
International Organization for Standardization 9001
ISO 14001
2
International Organization for Standardization 14001
UL
5
Underwriters Laboratories
CE
3
Conformité Européenne
CSA
3
Canadian Standards Association
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Key export market
🇦🇷 Argentina🇦🇷 Argentina
🇺🇸 United States🇺🇸 United States
🇮🇳 India🇮🇳 India
🇪🇨 Ecuador🇪🇨 Ecuador
🇨🇦 Canada🇨🇦 Canada
North AmericaNorth America
EuropeEurope
AsiaAsia
AfricaAfrica
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200311-50 peopleManufacturer/Trading Company/Service Company
Established brand
High-tech enterprise
Own brand
Low MOQ
Key market
🇯🇵 Japan
Description
Hangzhou Yongjieda Purification Technology Co., Ltd. is a professional manufacturer, trading, and service company based in Hangzhou, China, specializing in advanced water treatment equipment. Established in 2003 with a registered capital of 11 million and employing 11 to 50 people, the company is recognized as a high-tech enterprise in Zhejiang Province. They are dedicated to the research, development, design, production, sale, installation, and after-sales service of pure water and ultrapure water treatment equipment, including Lab Water Purification Systems, RO Systems, EDI Systems, and various water filters and cartridges. Yongjieda offers contract manufacturing services and collaborates with Zhejiang University and national scientific research institutions to absorb and develop cutting-edge product technology. Their products are widely applied in hospitals, universities, research institutes, testing centers, biotechnology, chemical, pharmaceutical, and electronic technology enterprises, as well as in electrical, power, electroplating, food, and beverage industries. The company holds ISO 9001 certification and is an AAA credited company, ensuring a perfect management and quality assurance system. They also specialize in membrane technology for special liquid separation and enrichment, and wastewater treatment/reusing projects.
Water Treatment System (HYJD-T)$1000
Qinhuangdao Tonglida Environmental Protection Energy Co., Ltd.
🇨🇳 China
199851-100 peopleService Company/Manufacturer
Established brand
High-tech enterprise
Own brand
ODM manufacturer
Key customer
CHINA AEROSPACE
Description
Qinhuangdao Tonglida Environmental Protection Energy Co., Ltd. is a professional manufacturer and service provider established in 1998, specializing in environmental water treatment and energy-saving solutions. Based in Qinhuangdao, China, the company operates as a high-tech enterprise integrating R&D, design, manufacturing, installation, and operation. With a workforce of 51 to 100 employees, they maintain a robust quality management system backed by ISO 9001, ISO 14001, and ISO 45001 certifications, alongside specialized qualifications for pressure vessel design and manufacturing (A1 and A2 levels).
Their comprehensive product portfolio includes industrial and rural water treatment systems such as reverse osmosis equipment, ultrafiltration units, integrated dosing devices, and sodium carbonate silos. Additionally, the company is a significant producer of heat exchangers, pressure vessels, nitrogen gas storage tanks, and anticorrosion products. Through its subsidiary, Liaoning Tonglida Technology Co., Ltd., the firm leverages advanced production facilities to serve diverse sectors including metallurgy, petrochemicals, and municipal engineering.
Tonglida has established a strong market presence by providing zero-discharge and reclaimed water reuse systems to high-profile clients such as Sinopec, PetroChina, and Shougang Group. Recognized as a "Specialized and Sophisticated" enterprise in Hebei Province, the company continues to focus on low-carbon technologies and solid waste reuse for both domestic and international markets.