Nanjing Changrong Co.,LTD was established in 2001 and located in Nanjing, nearby the Nanjing University. Our company was set to be a hi-tech corporation that is mainly engaged in the noise control manufacture, engineering and research. Our business involves from the manufacture of uniform acoustic products such as sound silencers, absorbers, insulators and loudspeakers etc to various acoustic engineering such as sound or vibration control in environmental projects, acoustic chamber decorating and so on.
We have passed ISO9001:2000 Quality Management System and been authorized the Environmental Fixture Installation Qualification. Additionally, by the Nanjing Government, our company has been regarded as not only one of the enterprises with Intellectual Property Protection but also 'private-owned technological enterprise' and 'hi-tech enterprise' etc. Taking the faith that hi-tech is first and talents are cardinal, we have built a strong team and applied more than 10 acoustic patents including High Intensity Loudspeaker(HIL) and Acoustic Test Control System(ATCS), which had been implemented reputably in the aseismatic quality tests for China 5th Spacecraft(SZ-5).
Besides we manufacture CR-SB noise barriers series and hold original innovations for conventional noise barriers. June 2004, the techniques including 5 patents used in CR-SB noise barrier were identified to be one-upping domestically in two provincial techniques appraisals. Our acoustic products are all-sorted with nice quality and customers speed over 18 provinces. Our pursuit is the harmony of Environment and Nature. Our Spirits are Steadfastness, Innovation and Endless Advancement. Being sincere, earnest and aspiring, we desire to cooperate with every friend from anywhere.
Oct 2004, Academician Ma Dayou visited our company and inscribed: 'Changrong Company, to Research & Develop one-upping the world'. With the kind words, we'll try our best continuously!