石棉 - 维基百科
Asbestos (pronounced: / æ s ˈ b ɛ s t ə s / or / æ s ˈ b ɛ s t ɒ s /) is a term used to refer to six naturally occurring silicate minerals.All are composed of long and thin fibrous crystals, each fibre being composed of many microscopic 'fibrils' that can be released into the atmosphere by abrasion and other processes. Asbestos is an excellent electrical insulator and is highly heat,Asbestos and the law - Wikipedia,The mineral asbestos is subject to a wide range of laws and regulations that relate to its production and use, including mining, manufacturing, use and disposal. Injuries attributed to asbestos have resulted in both workers' compensation claims and injury litigation. Health problems attributed to asbestos include asbestosis, mesothelioma, cancer, and diffuse pleural thickening.Color Guide to Identify Asphalt Asbestos & Vinyl Asbestos,,Color photo guide to asphalt asbestos and vinyl asbestos floor tiles, 1900 -1986 using dominant floor tile color to identify the probable asbestos-containing floor tile brand, pattern, and age. Here is an asbestos floor tile identification key sorted by primary flooring color: beige, black, blue, brown, tan, wood tone, gray, green, red, white, yellow, etc.