Guangzhou Heyin Acoustic Materials Co., Ltd., as a wholly-owned subsidiary of Jiansheng Group, is a full-chain enterprise integrating the research and development, production and sales of architectural acoustic technology and materials. After years of development, the

company has independently invested in the construction of an acoustic technology laboratory and two sound-absorbing and sound-insulating material production bases. It owns professional architectural acoustic material brands such as "Jiansheng", "Heyin" and "Hangyin". The company focuses on the design, construction and renovation construction services of public security, procuratorial and judicial case handling areas. Its main products include wall anti-collision soft bags, nano-cotton anti-collision soft bags, anti-collision toilets, anti-collision sinks, interrogation room anti-collision walls, wall anti-collision soft bags and other anti-collision sound insulation materials, and is committed to providing customers with professional anti-collision solutions. The company strictly implements a scientific quality management system to ensure the high quality and reliability of its products. The company is headquartered in Baiyun District, Guangzhou. It has more than 20 anti-collision fire protection, environmental protection and acoustic testing certifications, an annual production capacity of more than 200,000 square meters, and its products are sold all over the country.