Enterprises according to their own scientific and technical conditions, technical developments, market conditions, social environment, etc. to select the specific product development methods, generally have self-developed design, technology introduction, the introduction of self-developed design and

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The enterprise needs to act according to own scientific research situations and so on engineering factor, technological development, market condition, social environment chooses the concrete product development way, has the voluntarily development design, the technical introduction roughly, independ

Enterprise according to its own conditions of scientific research, technology development, market conditions, to select a specific social and environmental issues product development, largely developed by introduction of design, technology, developed by combination of design and technology transfer,

Enterprises will choose the concrete product development way according to situations such as one's own technological condition, technical development, market situation, social environment of scientific research,etc., develop the design, technology import by oneself, develop and design combining with