免费看国产黄_日本做aj的视频_又爽又骚无遮挡的网站_精品一级毛片国产_国产一区二区久久精品_日本欧美色图亚洲_影音先锋人妻啪啪av资源网站_黄网站色视频大全在线观看_日本在线中文字幕D√D_成人理伦电影在线观看一区

ABOUT US

            Heshan Boan Fire Resistant Glass Technology Co., Ltd. was established in early 2011 and is located at No. 20-3, Longkou Section, Jiangzhao Road, Longkou Town, Heshan City, Guangdong Province. Boan Company has been certified by the Fire Product Conformity Assessment Center of the Emergency Management Department and passed the ISO9001:2015 quality management system certification. Now it has two major production bases. The headquarters covers an area of 30,000 square meters. The second production base is located next to the headquarters and covers an area of 20,000 square meters. Boan Company has various professional technical scientific research personnel and large-scale advanced technology equipment at home and abroad, and is equipped with excellent quality inspection facilities.

            Boan Company mainly produces and sells: single layer fire resistant glass, high borosilicate fire resistant glass, composite heat-insulated fire resistant glass, nano crystal  silicon fire resistant glass, steel frame fire resistant glazed windows, aluminum alloy fire resistant glazed windows, heat-insulated oversized glazed fire resistant doors, smoke barrier, fireproof glazed non-load-bearing partition walls, large fireproof glazed curtain walls, aluminum alloy non-insulated fireproof glazed doors, and fireproof glazed door and window systems

MORE

COOPERATIVE PARTNER