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The top half of the bushing has groove on its inside channel surface to accommodate the middle 6mm bolt.
前半沟套管已在其内部通道表面，以适应中等6毫米螺栓。
youdao
-
The top half of the bushing has groove on its inside channel surface to accommodate the middle 6mm bolt.
前半沟套管已在其内部通道表面，以适应中等6毫米螺栓。
youdao