帮忙看一下你家的Treadmill, Walking Belt Guide是怎样装的？谢谢
What is the function of the "Treadmill Walking Belt Guide"? Does the inside of the belt face the Walking Belt Guide, or does the outside of the belt face the Walking Belt Guide
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帮忙看一下你家的Treadmill, Walking Belt Guide是怎样装的？谢谢
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