We&＃039;re the most professional manufacturer of Auto Darkening Welding Helmet and Digital Video Guangduan Ji(Digital Video Optical Transmission) in China. We, Xidin, are proud to offer a top quality product with competitive prices and services. As we know that each and every product is directly responsible for the client&＃039;s health&safety, each part of the manufacturing process is carefully screened and tested. Also the most advanced inspecting, researching instrument & equipment used for our production & researching. Xidin Auto Darkening Welding Helmets have already received high praise for outstanding filter quality, advanced design, and color from customers all over the world. We continually strive toward improved quality, service, and pricing for our customers&＃039; satisfaction. Xidin Digital Video Guangduan Ji(Digital Video Optical Transmission) is now widely used in "Green City" Project, Public Security Network, Video Conference, Mining Monitoring, Surveillance and other highway Video Optical Transmission in China. Xidin Focus on the future, size up the situation, proposed "Your Healthy & safety Partner" for the purpose, and to build a technology leader, scientific management, advanced equipment and services sophisticated anti-labor protection and safety protection of high-tech companies. As you needs, we can provide you OEM/ODM productions according to international standards or regional safety standards. We do promise our all products two year warranty. Welcome to visit our company and We look forward to hearring from you.</p>