ECT Bundle(Training) ECT Bundle(Training) - Al-Brass or ADM Brass or SS Material: Al-Brass or ADM Brass or SS Tube OD: 22 or 19.05 mm Thickness: 1 or 1.65 mm Length: 1500 mm Total number of tubes 10 no’s ECT Bundle(Training) - CuNi 70/30 & Incoloy 825 Material: CuNi 70/30 & Incoloy 825 Tube OD: 19.05 & 19.05 mm Thickness: 1.24 & 1.65 mm Length: 1500 mm Total number of tubes 14 no’s Note: we put two different type of material and each material having 7 tubes.