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瀝青防水卷材試驗方法 浸涂材料含量

Test methods for asphalt waterproof roll roofing; Saturated and coated bitumen amount of asphalt
標準號:GB 328.2-1989
Test methods for asphalt waterproof roll roofing; Saturated and coated bitumen amount of asphalt
標準號:GB 328.2-1989