The outer door is a polyurethane foamy one with a glazing unit observation window, for better perspectivity and heat preservation.
外门为聚氨脂发泡门,中空玻璃观察窗,透视,能。
The outer door is a polyurethane foamy one with a glazing unit observation window, for better perspectivity and heat preservation.
外门为聚氨脂发泡门,中空玻璃观察窗,透视,能。
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