Beijing zhongketianhao technology co.LTD. Mainly develops, manufactures and sells various kinds of building materials and engineering testing equipment. In recent years, a variety of testing equipment with independent intellectual property rights have been developed and gradually put on the market. The products that have been put into production include building energy saving, building doors, Windows and curtain walls, building materials and municipal testing equipment. It has gradually formed a set of scientific and technological entities with independent intellectual property rights in research and development, production, sales and supporting services to provide quality services for testing units.