as early as there was no popular CNC to make hand boards in China, hand boards were usually made with gypsum or oil mud. However, these two materials can only make the appearance of the product, and the internal https://asprecisionparts.com structure cannot be made

when you have CNC to process, as my friend said below. When the parts need to be turned over, in order to prevent product deformation, gypsum will be…

as early as there was no popular CNC to make hand boards in China, hand boards were usually made with gypsum or oil mud. However, these two materials can only make the appearance of the product, and the internal structure cannot be made

asprecisionparts.com/types-of-milling-operation/ when you have CNC to process, as my friend said below. When the parts need to be turned over, in order to prevent product deformation, gypsum will be filled on the back of the depression. After…