Draft Document - Personal protective equipment - Knee protectors for work in the kneeling position - Part 5: Requirements for knee mats (type 3); German and English version prEN 14404-5:2019
文件草案.个人防护设备.跪式工作用护膝.第5部分:护膝垫(3型)的要求;德语和英语版本prEN 14404-5:2019