... scupper,Acid-alkaligroove,and heating the melting furnaces etc.Insulating material:Magnesia Tube material,seamless pipe,welded pipe,copper pipe,brass pipe, ... heating tube can be produced in various kinds of material,type and shape.which according to the drawing and ... develop as per your request, pls advise your specifications:1. Material, Diameter, length2. Wattage and voltage3. Type of terminal 4. ...