ISO 20349-2:2017/Amd 1:2020 个人防护设备.铸造厂和焊接中的防护鞋.第2部分:焊接和相关工艺中的防护要求和试验方法.修改件1
Personal protective equipment — Footwear protecting against risks in foundries and welding — Part 2: Requirements and test methods for protection against risks in welding and allied processes — Amendm