as a water treatment fungicide, bcdmh has past the united states epa and canada pmra registration used for swimming pool and industrial water treatment which also got the united states nsf certification. keda chemical has a professional sales company in north america , headquartered in atlanta, which can directly serve for north american customers."hydria clear" is a us independent trademark owned by keda chemical and has become one of the major bcdmh brands in the united states market. for a long time, keda chemical also provide oem service for bcdmh to worldwide customers in north america, europe, south africa, australia, japan, korea, india and other countries and regions, long-term and pleasant cooperation to win the trust of worldwide customers .