美利体育登录入口官网:BS EN 14891:2012 用于瓷砖下部、胶粘剂粘合的防水渗透的液体产品 要求、试验方法、一致性评估、分类和标记
Liquid-applied water impermeable products for use beneath ceramic tiling bonded with adhesives. Requirements, test methods, evaluation of conformity, classification and designation