Green sand casting casting clay weight from a few kilograms until decades kilograms, machine tool lathe bed and clay dry type of casting production can be weighed dozens of tons.

粘土湿型砂铸造的铸件重量可从几公斤直到几十公斤，机床床身而粘土干型生产的铸件可重达几十吨。

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For example is also a large machine tools such as casting production lathe bed, generally USES the method of cores modelling, don't make shape and sand box, in the pit of cores in;

例如同样是生产大型机床床身等铸件，一般采用组芯造型法，不制作模样和砂箱，在地坑中组芯；

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