Workwear for welders and foundrymen requires special certification according to the protective standard EN ISO 11611 for welding protection in combination with the protective standard EN ISO 11612 (protective clothing against heat and flames). For foundrymen, the workwear must have almost the same protective properties and so a pair of welding trousers is also a pair of foundry trousers. For foundry work, it is a matter of short-term protection through the right work clothing, a short-term protective work clothing, so to speak. In addition, of course, welding trousers should always be equipped with knee pads for working on your knees - your knees will thank you!