Longyi updated ISO 9001:2015 certification in 2019 Congratulations!Longyi was first certified and certified by the ISO 9001 Quality Management System in 2004 and again certified to ISO 9001:2015 in 2019. Comprehensive quality control and strict production process control are our long-term business philosophy. We are ISO 9001:2015 certified. We will continue to provide better products and services and gradually establish and maintain customer loyalty. Certification, Longyi regularly receives quality control
National Day holiday announcement We have closed on the following dates： 2019/10/10 ~ 2019 / 10/13 Please leave a message when there is urgent business demand during the holiday We will reply you as soon as possible. Thank you for your understanding and wish you all the best.