widely used in coal and mining industries, metallurgy, electronic industry, harbon, cement, power plant. Carbon steel. ISO,CE We are manufacturer in China( ... ), and all of our products have been used in more than 10 countries in the past 2 to 3 years. We ... of the belt conveyor:1. usage: used in coal and mining industry, metallurgy, building, harbor, etc. 2. Used environmental temperature: -25°c to ...