Sigma HongKong Ltd is professional membrane structure company, it eastablished in 2005, it's an earlier membrane structure in the design, construction and obtaining the qualification of large enterprises. Business in the membrane structural engineering design, processing, production, installation, maintenance, and purchase and sale of such film material. We major make membrane structure, tensioned membrane structure, parking shade membrane structure, stadium membrane structure, square membrane structure, garden membrane structure, swimming pool membrane structure, hotel membrane structure, exhibition membrane structure, supper market membrane structure, shopping mall membrane structure, toll station membrane structure, petrol station membrane structure, air structure, air domes, tent series. Membrane structure in the world is a wide range of applications in recent years, Olympic Aquatic Centre in China in 2008 - the Water Cube, Olympic Sports Center - Bird's Nest and many other long-span spatial structures are the main construction by the membrane structure is completed. Over the years our company construction 30 places of a Country Garden in China, nearly 30, 000 square meters of real estate, OCT East Shenzhen nearly 50, 000 square meters, Huadu, Guangzhou Asian Games Stadium, Shenzhen Universiade stadium membrane structure Design and construction. We Completed within the total more than 300 individual projects, and total area of output 80, 000 square meters in Asia, We will use our professional to help client solve problem, and won the majority of customers's praise.