In November 2024, Qingdao Haina Energy Environmental Protection Technology Development Co., Ltd. was rated as an AAA credit enterprise by Beijing Crown Speed Credit Management, with a validity period of 3 years.
Qingdao Haina has been rated as an AAA credit enterprise
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Haina Saudi Arabia Tour: Exploring the Market Potential of Industrial Oil Purification and Waste Oil Recycling
Promote the application of Hai Na waste oil purification and regeneration techno…
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Electric Adsorption Purification and Reduction Equipment F-300- Online Oil Dialysis Expert
specially designed for online purification of industrial oil products (gear oil,…
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Electric adsorption purification and reduction technology – the “blood purification expert” for rail transit lubrication systems
The secondary benefits brought by electro adsorption technology are positive, re…
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Purification of hydraulic oil/gear oil in the steel industry – a win-win situation of cost reduction, efficiency improvement, and green emission reduction
Purification and filtration of steel hydraulic oil and gear oil，Electroadsorptio…