Trucks (BUS) equipped with air brakes have an air compressor on the engine. The air compressor keeps air tanks full, so there is always air available to stop the truck.
All air has a certain level of humidity, which means there is always water vapor in the atmosphere - no matter if you're in a dry or damp climate.Air is heated as it is compressed and it cools as it travels through the discharge line to the air tank. This cooling results in condensation, creating pools of water in the bottom of the truck's air tanks. As a result, oil from the compressor and any contaminants that made
it through the compressors air filter in the water might be found in the air tank. WBACC® Air Dryer Cartridge eliminate water and contaminants from the air system.
Ruian WBACC Auto Parts Co.,Ltd. (RAKENO)  is an auto parts company which is specialized in making  Automobile compressed air treatment system and Automotive filter. 
Our main products contains Automobile air dryer and all kinds of automotive filters. 
According to the customers requirements and the market demands, we are working hard to develop more new items and series of the products.
We are not only pursuing for superior quality products, Optimization of production capacity and cost control, we also paying attention .to the used of consumers, advices, and continually to improve as meet the rapid development of the marketing need.Base on scientific and technological innovation, survive with high quality,we believe  WBACC company, will be by the test of market, and create an auto compressed air treatment system benchmarking enterprises.
wbacc The development course
1949 - Zuoyan Zhu set up the hardware workshop,the specialized in hardware manufacturing:hutch ark parts and lock parts .
1970 - Dinghuan Zhu's son - Chongqin Zhu ,He set up the individual hardware factory. Specialized is engaged in and the development of aluminum and copper casting and bicycle spare parts production and development.
2002 - Chongqin Zhu's son - Wencheng Zhu and Changxi Sun are set up garage , the specialty is engaged in the car and bus repair services, At the same time provide coach components development service.
2006- Establishment of Ruian passenger car accessories sales center. 2008 -Establishment of Ruian Keno trade Co. Ltd.
2010 -Establishment of Ruian WBACC Auto Parts Co.,Ltd , start WBACC brand, the specialty is engaged in the household air treatment , Car air treatment, industrial air treatment.
2012 - Acquisition Tanosen filter,set up KENO group (China) Co., Ltd.
2013 - And Hno hardware strategic partner agreement.
2014 - Acquisition Ningbo Weiyake auto parts Co.,Ltd.
2015 - Establishment of Keno group international department.
2016 - Acquisition Martha China.