The front door dog-legged -like structure heat insulation, separates the noise, the operation comfortable and the energy conservation.
前门双壁式结构隔热、隔噪音，操作舒适并节省能源。
The front door dog-legged -like structure heat insulation, separates the noise, the operation comfortable and the energy conservation.
前门双壁式结构隔热、隔噪音，操作舒适并节省能源。
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