Surveying instruments, photographic equipment, camping tents, etc., need strong and reliable support when used. For the support rod, it must be heavier and more stable, but from the practical point of view, the lighter quality is more suitable for long distance. Trekking to carry. The lightweight, rugged carbon fiber tube is well suited to this task. Carbon fiber is more flexible than aluminum alloy. As long as it is not violently bumped, it will not cause structural damage to the column, but the metal frame has The pit may be pulled out to affect the folding of the frame. From the perspective of long-term use, the metal frame is more prone to bending and deformation.
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