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以前用的砂箱肖子是每套砂箱一对肖子,下端用螺丝帽旋紧(示左图);这样对一般的小砂箱固然方便,但是在 500公厘以上砂箱就不大适用。因为固定在砂箱上或开箱时容易碰弯和时
The sand boxes used before the sand box is a pair of sand boxes Shaw son, the bottom screw cap tighten (shown left); This is convenient for the general small sand box, but 500 mm sand box is not suitable. Because fixed in the sand box or when the box is easy to touch and when