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Qingdao Yingli valve - gate valve technology continues to make a breakthrough

Qingdao Yingli valve to achieve technical breakthroughs, all rely on the company set up professional and technical research and development team, has been the valve technology improvement, innovation and research and development on the development of the first, over the years made the development achievements for all to see, the company continued to grow, So that the market competitiveness continue to enhance, with a competitive advantage
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