男女肉粗暴进来120秒动态图,好硬啊进得太深了H动态图,男女真人后进式猛烈QQ动态图

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    2. HOME QUALITY ASSURANCE SYSTEM

      QUALITY ASSURANCE SYSTEM

      Committed to strict internal standards

      Our unremitting efforts to achieve high standards can be confirmed by the various qualification certifications we have. They are the source of our self-confidence and the guarantee of our customers' trust. They prove that our products have strong performance, excellent craftsmanship and reliable quality.

      What is proud of is that for many years, from the establishment of the system to the present, we have consistently adhered to the implementation of each improvement, so that we have been in a state of continuous improvement and constantly sprinting to new heights.

      Our qualification certificates

      We are also committed to strict internal quality standards and testing standards. We have passed ISO9001 certification and CNAS certification. Our management system is based on ISO9001 and ISO14001 standards; the management of our testing center is based on ISO17025 standards.

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      男女肉粗暴进来120秒动态图,好硬啊进得太深了H动态图,男女真人后进式猛烈QQ动态图