
BS EN 13707 AMD2. Flexible sheets for waterproofing. Reinforced bitumen sheets for roof waterproofing. Definitions and characteristics
出版:British Standards Institution

專家解讀視頻
BS EN 13707 AMD2. Flexible sheets for waterproofing. Reinforced bitumen sheets for roof waterproofing. Definitions and characteristics
出版:British Standards Institution
專家解讀視頻