American USA standard cheap aluminum storm windows for sale on China WDMA Built-in Blinds Q5: Are there any problems

Q5: Are there any problems with the glass inside

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American USA standard cheap aluminum storm windows for sale on China WDMA Built-in Blinds Q5: Are there any problemsProduct Description American USA standard cheap aluminum storm windows for sale Series: Commercial System Name Model: Casement window Standard Certificate: Comply with AS2047 CSA Glass Standard: Comply with AS2208 IGCC Color choice: Standard: matt black; frosted black; white; Grey. Customized: Brozen; sliver grey; clear anodized; wood color and some others. Thermal Insulation: U value from 1. 5 to 2. 0 W M2k Window Rating: N6 Sample lead time 7 days