Derived from practical needs, your desire requires of man on a plastic product that the designer will design the product according to customer's requirements or design. Please number the mold by client decided or boss. Computer crush the mould depends on the economic efficiency of the mold when pressed (e.g. sp the stereotypical little crush + number too small > plastic injection does not favor public money, money, money), please number the mould depends on the amount of detail in the product (please number the number mold is more), and depend on the size of the product. The number of manufacturers to make durable mold or not (many good steel molding, molding of conventional steel)
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