Our bolted steel tanks are designed to meet AWWA D103 standards ideal for municipal water storage, . Additionally, we offer NSF 61 certified bolted steel water tanks designed for potable water storage. Our municipal water tanks can use ring enamel assembled tanks, stainless steel storage tanks, and carbon steel storage tanks. Our tanks are NSF certified for the storage of potable water.

To support various municipal wastewater treatment operations, we manufacture different tanks including wastewater storage tanks, anaerobic/aerobic digesters, equalization tanks, sequencing batch reactors (SBR), membrane bioreactors (MBR), aerators Gas tanks and circulating water storage tanks.

Our Water Storage tanks

About Center Enamel

Center Enamel is the leading bolted tanks and roofs manufacturer in China, which have more than 30 years of industry experience. Our main products include Glass-Fused-to-Steel tanks, stainless steel tanks, Carbon Steel tanks, aluminum geodesic dome roofs, and can provide customized design, manufacturing, and installation for global customers.All our products are in strict accordance with AWWA D103-09, API 650, OSHA, ISO 28765, NSF/ANSI 61, NFPA and other international standards. Until 2022, Center Enamel storage tanks and roofs have been exported to more than 90 countries including the USA, Australia, Canada, Malaysia, Indonesia, Russia, UAE, Panama, Brazil, and South Africa etc.

Shijiazhuang Zhengzhong Technology Co.,Ltd is a professional manufacturer dedicated to the design and fabrication of bolted storage tanks since 1989. Our products range includes Glass-Fused-to-Steel (GFS) tanks, fusion bonded epoxy tanks, stainless steel tanks, galvanized steel tanks and aluminum geodesic dome roofs. With professional enameling R&D team and more than 20 enameling patents, Shijiazhuang Zhengzhong Technology Co.,Ltd has become the leader in bolted tanks industry of Asia. Our products are certified to ISO 9001, CE, NSF/ANSI 61, WRAS, ISO 28765, LFGB, BSCI, ISO 45001 and other international standards.

Shijiazhuang Zhengzhong Technology Co., Ltd is not only the first manufacturer in China which produces Glass-Fused-to-Steel tanks, but also the most experienced professional bolted tanks manufacturer in Asia. The engineering & design, product testing and quality system of Center Enamel Glass-Fused-to-Steel tanks is in strict accordance with AWWA D103-09, OSHA, ISO 28765, NSF/ANSI 61, NFPA and other international standards. Center Enamel Glass-Fused-to-Steel tanks are wildly used in drinking / potable water, industrial effluents, municipal sewage, bio-energy, landfill leachate, agriculture and other applications. Until 2023, Center Enamel bolted tanks have been exported to more than 100 countries including USA, Australia, Canada, Malaysia, Indonesia, Russia, UAE, Panama, Brazil and South Africa etc., the superior tank quality and prompt service gains us worldwide recognition.

As an outstanding containment and cover system provider with more than 30 years of experience, Shijiazhuang Zhengzhong Technology Co., Ltd sincerely expects to establish long-term cooperation with the local partners throughout the world and make continuous contribution to the development of the industry.