GB/T 40363-2021冷藏集装箱和冷藏保温车用硬质聚氨酯泡沫塑料标准
英文:Rigid polyurethane cellular materials used for refrigerated containers and refrigerated trailers GB/T 40363-2021介绍: 国...
英文:Rigid polyurethane cellular materials used for refrigerated containers and refrigerated trailers GB/T 40363-2021介绍: 国...