In China, Were the most professional, the biggest manufacturer & exporter of Auto-Darkening Welding Helmet. We have been in this line Since 1984, and established Tecmen Electronics Co., ltd. In 1988, This company began with an innovation that responded to customer needs. And now, The TECMEN becomes one of the main players in the worldwide market. The TECMEN specially focus on researching, developing & manufacturing all kinds of Auto Darkening Filter, Welding Masks, Powered air purifying respirator and welding Accessories. Now, The TECMEN owns a professional workshop with 14,000 square meters, Hundreds of employees; And a professional R&D team with skilled senior engineers; Also has the most advanced inspecting, researching instruments used for our production inspect and R&D. A product Quality management system is the core of the company culture (ISO 9001/2008 certified). So, from the raw materials to the finished products, The products quality is always controlled strictly by our QC team. TECMEN brand products are CE, GS, DIN, CSA, ANSI, AS/NZS approved already under newest standard. TECMEN is the first Chinese manufacturer, gained the DINplus, GS certificates. When TECMEN products are on the job you can be assured that you are safe and protected. The TECMEN products are very popular on the worldwide market, Because of its excellent reliable top quality level, and the most competitive price. Welcome to visit our factory at Nanjing.