介绍了现行设备维修制度的不足，分析了铸造行业设备维修的现状。
The weak point of current equipment maintenance system is pointed out and the present maintenance status of equipment maintenance in foundry industry is analyzed.
第一章导论主要介绍了我国铸造行业的现状及存在问题，造型材料的发展趋势和展望；
The chapter I mainly introduces a) the status quo and problems of Chinese foundry industry, development trend and view of molding material;
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