Vienna Acoustic Technology Company is engaged in room acoustic design such as sound insulation acoustic technology application, acoustic testing, and architectural acoustic design. The indoor acoustic design application covers the acoustic construction of construction projects such as cinemas, hotels, concert halls, gymnasiums, hotels, theaters, auditoriums, conference halls, movie theaters, museums, and libraries. Recommended acoustic materials: polysand fiberless sound-absorbing mortar, AGG polysand seamless sound-absorbing board, and polysand sound-transmitting decorative coating.

Zhongzhou Graphite (Zhejiang) Co., Ltd. is committed to: graphite crucibles, graphite electrodes, graphite processing, graphite boats, high-purity graphite, photovoltaic graphite, EDM graphite, etc. It is a high-tech enterprise integrating scientific research, production, sales, installation and service.