High-tech windows with three panes of glass filled with inert gas guarantee optimum sunshine throughput and insulation.
高科技三层玻璃窗，内部空腔填充惰性气体，可以保证最佳的阳光投射量和室内保温。
High-tech windows with three panes of glass filled with inert gas guarantee optimum sunshine throughput and insulation.
高科技三层玻璃窗，内部空腔填充惰性气体，可以保证最佳的阳光投射量和室内保温。
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