本機不佔空間，可任意移動，換網容易且壽命長。雜質自動排出，便於一貫作業，無機械動作，不需保養，使用年限*長久，並可單層或多層使用。

The machine occupies little   space and easy to move. It is also easy to replace the shifting net or clean. Impurities  can be automatically expelled and it is convenient for intergrated operation.  No need for maintenance and it is a durable construction. It can be used in  single layer or multilayer.