For cinnamon tube,the thickness is 0.2~0.8cm .Outer surface grayish brown, slightly rough, some visible grayish white markings; and The inner surface isreddish brown, slightly flat, with fine longitudinal lines and oil marks.
Application: Temperature Chamber Calibration/ Temperature Humidity Test Chamber is also called environment testing machine, used to test various types of materials for their tolerances of heat, cold, dry, humidity. It is applied for quality inspection for