CN/中国 
US/USA 
KR/Korea 
DE/Germany 
ES/Spain
VN/ViệtnamAcoustic
Service Items: Standard sound source, sound calibrator, high sound pressure microphone calibrator, test capacitor microphone, filter, sound level meter, sound power meter, noise dosimeter, anechoic chamber, reverberation chamber, sound wave belt tensiometer, working standard microphone, noise statistical analyzer, personal sound exposure meter, noise dosimeter, sonar meter, electroacoustic power tester, audio power amplifier, simulation nozzle Simulation ear, pure tone audiometer, sound intensity meter, multi-channel sound analyzer, public nuisance noise vibrometer, etc.
