Whether in coal mine signs hanging signs factory site selection coal mine, or in terms of the choice of material has its particularity. Because of the industry, the coal mine signs use flame-retardant materials, in a dark place to use reflective material. In order to make the production of coal mine safety, coal port in addition to the suspension of corporate culture, outside the coal mine warning signs or banners and signs, safety measures should be taken. Whether it is or the use of high-quality aluminum reflective film, must be achieved strong waterproof, resistant to UV Coal price signs, have superior flame retardant effect, as long as our security so as to provide the most effective exploitation of the mine protection. Coal reflective signs need to select the direction-sensitive material: Mine signs in accordance with the size of inverse reflection coefficient measuring method, when at 0 ° and 90 ° angle of rotation one of the conditions tested, the inverse direction reflectance values ??of R7-sensitive material should be separately in line with the requirements of single properties of materials and the same combination of properties of materials; when measured at another rotation angle conditions, the inverse reflection coefficient R 7 can not be less than 75% of a single material or combination of material properties corresponding predetermined value. Coal price signs, signs coal mine in Anhui, Henan Po plate. Provided by Changyuan signs Ltd. Yu Po. Changyuan Yu Po signs Ltd. (www.hnypbp.com) strong, credible, in Xinxiang nameplate industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Yu Po into the brilliant signage and you work for a better future!