Pragmatic New Patent

Henan Changmao Yuanyi Valve Co.,Ltd 's production of Inner seamless high-pressure rubber joints won the utility model patent certificate, the certificate approved by The People's Republic of China State Intellectual Property Bureau in accordance with the preliminary review of the patent law, authorization for franchise
Certificate NO.:760473
NAME:Inner seamless high-pressure rubber joints
Patent NO. :ZL 2004 2 0075212.8
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