Detailed Product Description bridge deck formwork mivan aluminium formwork permanent formwork systems Permanent Bridge Deck Formwork with Channel Beam Description: 1. Brief introduction GB system-A is a kind of formwork especially for the bridge floor construction. 2. Competitive advantage ①. Prefabricated connection, convenient and efficient. ②. Light weight but high bearing capacity. ③. Timber is easy resized, so the Tim-formwork is relatively easier to change self’s size and shape. This approved formwork’s economical efficiency.