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resource advantage assets owned and used to provide the basis for competitiveness, including internal and external resources. skill advantage is translated into technical ability and supporting ability. product design, our company has a professional design team, including product modeling design, product structure design, product function development, product production optimization engineers. in addition to our own design team. round neck slim fit design, large cuffs to modify arm lines, threaded design, classic durability, anti deformation, anti pilling.syi