After the project team of welding mask designers'efforts,new Auto-Darkening Filter model-ADF-100 grand into the market.The product is a South American customer demand and development of Cartidge size To: 108 * 50.8 * 5mm, fixed shade DIN4/11(10), can adapt to the old-fashioned head-mounted  Welding Mask, but also, after switching module automatically adapt to the new standard Auto-Darkening Welding Mask. Our product is low price with high quality,any trial order will be welcome.