Tiange Building Materals Co., Ltd. as the sales headquarters in mainland of Tianchen Industrial Group Co., Ltd., it offers the services of inside acoustic consulation and design, project denoiser handling and acoustic products installation etc. This company is promoting the brands "FRTSEN"and "TIANGE", which are very famous in this acoustic industry, and enjoy very high public praises among consumers. Our brands are appointed by many major projects and our products are selling to more than 10 countries and district in the world. In the future development, we are putting more concentration on the products quality and keeping cooperated consent, improving and enjoying the profit together with all of the old and new clients.