Coal mining is a special industry, in different regions, because the light is a problem, you need to manually label for instructions or reminders. The main function of signs is through sign above text, graphics, symbols and so on manually warning role. Mine signs often use different materials in different areas of artificial reminder. If the intersection is indicated signs must be mine, indicating a secure channel. When there is danger in order to prevent the occurrence of unnecessary for employees to find a safe exit as soon as possible to provide the most secure route shortcuts. The company provides long-term coal signs, mine protective equipment, coal and other products dedicated fences, welcome new and old customers to buy, please consult http://www.hnxpbp.com/-Zhongqi