We're the most biggest professional manufacturer & exporter of auto darkening welding helmet in China. We have been in this line since 1984, and specially develop and manufacture all kinds of auto darkening welding helmet products. All tecmen products confirm to applicable CSA, ANSI, CE & AS/NZS standards. When tecmen products are on the job you can be assured you are safe and protected. Welcome o visit our factory, and your any inquires are welcome.