Key Features: This UPVC/Vinyl double hung window features a <highlight>2.5mm profile thickness</highlight> with <highlight>1.2mm steel reinforcement</highlight>, offering excellent soundproofing, heat insulation, and airproofing. It boasts a wind resistance performance of <highlight>4.5≤P3<5.0</highlight> and comes with a <highlight>10-year quality guarantee</highlight>.
Supplier Highlights: The supplier offers an annual production capacity of <highlight>50000 PCS</highlight> and provides professional suggestions on profile and glazing adoption. They assist customers with shipping arrangements and maintain high standards of customer service.