motorized curtain rodCustomized specifications or according to a model developed. Construction materials include wood, aluminum and steel. Pipe diameters are 20, 28, 30, 35, and 50. We welcome your inquiries.Advantages -1, one of the best blind manufacturers in China, 2, MOQ is one, we can ship your order to you, and we can finish production in 48 hours minimum. 3, Overall order on line and organize your order.