Founded in 1920 in the United States, it is one of the top ten brands of partitions, an expert in detachable partitions, and a large-scale modern enterprise integrating product design, testing and evaluation, technical support and assistance

Founded in 1920 in the United States, the company has been committed to the production and research and development of partition products from the beginning of its establishment, providing customers with high-quality and fashionable products. In 1961, the French Ottoman company was established, in 1985, it began to carry out business in Asia (South Korea), in the same year, the Gumi factory in South Korea was put into production, in 1986, the Hong Kong company was established, in 1996, the Korean company passed the ISO9002 certification, in 2004, the Shanghai representative office was established, and in October 2007, Kalestro (Shanghai) Building Materials Co., Ltd. (Shanghai factory) was established, and now our customers are all over Chinese mainland and Hong Kong and Macau, and have become financial institutions, consulting companies, Advertising agencies and other products that pursue a fashionable and gorgeous design style are the first choice, and at the same time, they also provide a luxurious atmosphere for the office decoration of the headquarters of foreign and state-owned enterprises and foreign representative offices.

Clestra Hauserman invests heavily in R&D every year to ensure its leading position in product innovation and design.

The Group's R&D department is divided into three parts:

New Product Design: The company has a dynamic team that works closely with the marketing department to design and develop innovative products that are constantly up to date with the latest architectural trends and the latest needs of our clients.

Testing & Evaluation: The task of this department is to obtain official certification of products on structural, soundproof, fire, ventilation and seismic performance and any other technical requirements required for specific projects. Prior to certification, suitability testing is required in the company's testing laboratory.

Technical support and assistance: each project has its own unique architectural and technical characteristics; A successful product is inseparable from the company's special research according to the specific characteristics of the project.

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With production plants in France (Durdan, near Paris and Ilquil, Strasbourg), South Korea (Gumi) and China (Taicang, Shanghai), the company optimizes its global presence in logistics, ecology and economy.