◎ Consists of 4 drying stations, adopt PTC(Positive Temperature Coefficient) heating, no pollution to the inside of tubes, and achieve high efficiency of drying. It has correct positioning device for the hot rods and tubes to prevent damage of tubes from hot rod. The 4 drying system can be selectively operated according to production requirement. The temperature can be set according to customer' s requirements. Integrated of 4 drying stations to ensure less energy loss, high efficiency of drying.