Sports Accessories
Upper body training bar, upper body training bar, fitness equipment, door frame pull-up bar, total upper body training bar, total upper body training bar for pull-up bar for home
【Mechanical Principle of Triangle Lever】: The stronger the tension on the horizontal bar, the more the spring is compressed and the tighter the two ends of the base are against the wall. 【Horizontal Rod Tightening】: After the mortise and tenon lock...
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