Introduction: Oven is widely applied to the fields of motor, glass, ceramic, PC board, coating and etc. for the purpose of drying, preheat and finalize the design.The oven is consisted by working room, air supply device, Japanese control system, and protection system. Work with the ball pressure test apparatus can do the heating resistance test. Parameter: Temperature range: RT~220℃ Temperature fluctuation: ±1℃ Temperature uniformity:≦±2℃ Temperature deviation:±2℃