Harbin No. 69 Middle School

Kedong Shuangbao Hotel Wedding Hall

Heilongjiang Provincial Automobile Passenger Transport Corporation

Heilongjiang Provincial Party School

Northeast Light Alloy Co., Ltd

Installation of multifunctional hall audio system

Case study of multifunctional hall sound engineering

Harbin Public Security Bureau Multi functional Hall Sound Case

Sound Case Engineering

Case study of hotel private room sound engineering

Case study of multifunctional hall audio system

Small Stage Sound Case