The outer portions of the guide shoe are made from steel, generally matching the casing in size and threads, if not steel grade.
引鞋的外部由钢制成，一般与套管的尺寸和螺纹匹配，如果钢级不匹配的话。
We are connecting the guide shoe and casing shoe.
我们正在接引鞋和套管鞋。
We are connecting the guide shoe and the casing shoe.
我们正在接引鞋和套管鞋。
First, connect the guide shoe and the casing shoe.
先接好引鞋和套管鞋。
First, connect the guide shoe and the casing shoe.
先接好引鞋和套管鞋。
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