​प्राप्त उत्पादों के संदर्भ में रेत कास्टिंग और सटीक कास्टिंग के बीच क्या अंतर है?

रेत कास्टिंग और परिशुद्धता कास्टिंग, these casting methods, in terms of the products that can be obtained, the actual difference lies in the roughness of the product surface. Sand casting, these products have a very rough surface, so they are not very good. For precision casting, the surface roughness of these products is better than that of sand casting.