聚氨酯硬泡沫废弃物
waste polyurethane rigid foam
端硅氧烷基聚氨酯低聚物
alkoxysilane terminated urethane oligomer
废弃物分类
Waste classification
waste separation at source
废弃物处理
treatment of solid municipal waste
waste disposal
waste treatment
Treatment on Waste
waste management
Plant waste disposal
wassersucht