天堂在线中文在线最新版ll_情趣用品play小说h_口爆吞精国产对白_亚洲高清毛片一区二区_日韩亚洲欧美性久久_挺进新婚少妇雪白肉体_男女做爰大粗舒服小说_在线精品视频免费观看偷_爱情公寓全黄H全肉辣文_毛片视频网站看免费

            Guangdong BOAN Security 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