in first-rate mold solution co, ltd, when we do mold design, in structural design, our designer sometimes design integral cavity as cavity side, that is to directly cut cavity in the mold base plate. Some mold manufacturers call it as “cut cavity in the block”, the advantage thereof is that the processing cost is relatively low. Yet the molding plate material for making the mold base is usually common medium carbon steel which is short in service life if used as cavity parts, whereas selecting materials with high performance shall result in high production cost. But sometimes, some customers require first-rate mold solution co, ltd to do like this, actually it depends on our customer’s requirement.