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The more the cavity of the profile, the denser and smaller. Then the punch of the die is more likely to be broken during extrusion. A few profiles have not been made, and the mold is broken. The complex and multi-cavity mold reflects the strength level of the factory. Not necessarily a large mold, the production difficulty is large. There are some large molds with a weight of 5-6 tons, but the difficulty is not high, but it requires a large-tonnage extruder. If the die-casting plant is not equipped with the corresponding machine, it cannot work out the big profile. This is not related to the complexity of the mold.