Lightweight roof size washer fixed point over dragons state activities of the board, the local stress is too large, resulting in the opening part of the roof tearing; connector roof purlins and unreliable Sea activities of the board, under the effect of the wind suction Rong activities of the board, on some wood purlins nails were pulled out: some aluminum rivets pulled off or removed from the aluminum in aluminum rivets. Activities of the board of the electrical design, installation shall comply with the provisions of the current national standards, electrical wiring should adopt the wire flame-retardant PVC pipe or channel for surface plates, prohibit the use of insulation aging, damaged and take a long use. Activities of the board shall be designed lightning protection and grounding. Chongzuo activities of the board activities of the board _ _ Guangxi Guangxi Galaxy Galaxy is provided by the metal structure Engineering Limited. Guangxi Galaxy Metal Structure Engineering Co., Ltd. (www.gxmmr.cn) strong, credible, in Nanning, Guangxi's activity room industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Guangxi Galaxy and you hand into the brilliant, for a better future!