Strict material selection: Aluminum alloy material, lightweight design Condense in the core: the spring seat design makes the spring automatically spring into idling phenomenon after expanding the tube to 45°; No dama to the pipe, so that the expansion of the pipe flared more smooth and beautiful Rotating tube expansion: Expanding the tube in a rotating way is not only labor-saving but also fast, and the curvature of the tube expansion can be accurately presented as 45° horn Accurate axis: The arrow indicator can be accurately aligned to the axis, so that the tube expansion roundness is more accurate High precision thread: in and out of the powerful rotation of silk smooth is not easy to dama For high-value items, customs clearance in your country requires your cooperation; please be advised. Welcome and I wish you a happy life, my friend., Manufacturer: DCDCD