... infrared ray with a wavelength of 3um~50um. Infrared ceramic heater tube is made from the precious metal oxides, when through ... wall 3μm ~ 15μm wavelength infrared. Model Tube Dia (mm) Tube length (mm)TB-1212100~700TB-1414100~1500TB-1717100~2000TB ... Drying of Leather, Wood, Plywood, Printing and Dyeing Product, Paint, Ceramic Glaze, Medicine, Paper, Printed Matter, Food, Agricultural Products, Seafood. ...