意大利采购需求：铝合金窗，铝门，门窗，圆窗，推拉门

I'm looking for high-quality windows specifically designed for roofing applications. It's essential that these windows provide excellent insulation and durability, given their location and exposure to various weather conditions. Ideally, I'm interested in options that can withstand heavy rain and strong winds, as well as ones that enhance energy efficiency. Additionally, I'd appreciate it if you could provide information on different styles and finishes available, along with any relevant customization options. Please also include details about delivery timelines and volume pricing, as I may be placing a larger order depending on the options available. Looking forward to your prompt response!