The invention has the advantages of simple production process, low production cost, high yield, easy popularization and the like.
本发明具有生产工艺简单，生产成本低，产率高，易于推广等优点。
The invention has low equipment requirement to low-pressure casting, easy realization, lower cost, simple operation and easy popularization.
本发明对低压铸造的设备要求低，容易实现，成本较低，操作简单，易于推广。
In addition, the sole has the advantages of simple manufacturing process, low cost, convenient use, long service life, easy popularization and the like.
另外，本发明具有广泛用途，且制作简单，成本低廉，使用方便，使用寿命长，易于推广等优点。
In addition, the sole has the advantages of simple manufacturing process, low cost, convenient use, long service life, easy popularization and the like.
另外，本发明具有广泛用途，且制作简单，成本低廉，使用方便，使用寿命长，易于推广等优点。
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