Tianjin Tianpeng Construction Facilities Co., Ltd. ( Topone ) designs and manufacture concrete formwork fasten accessories, base jacks, shoring & falsework systems of strong, lightweight. Topone is the first company design and manufacture formwork fasten system in China, was established in 1993. Topone, the national authorized supplier of 2008 Olympic Game projects(such as Bird's Nest, Water Cube and other 16 main gyms) and 100% nuclear station projects in China, has already got a wonderful ...