题目内容

we can use a shoe reamer,This tool is mainly for the length of roller skates and foot width sizeis not suitable for foot size and make fine tuning,Push the roller skates into the shoe reamerUse a ______ to heat areas that need to be expanded

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The hardness of the wheel has little influence on the speed of taxiing. In different use situations and race distances, the wheel with the same hardness should be selected

Speed roller skates belong to

A. gym shoes
B. Sports equipment

The hole spacing of 30-32 yards for speed skating is:______ The hole spacing for speed skating in 33-37 yards is:______ The hole spacing of speed skating shoes in 38-45 yards is:______

Install 4 x 90 mm wheel frame length is______ inches, pitch is ______ mm

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