印度采购需求：铝合金窗，铝门，门窗，圆窗，推拉门

I'm reaching out to get some specific details regarding your product offerings. Specifically, I'm interested in understanding the maximum dimensions available for the items you sell. It's important for us to ensure that the products we source meet our requirements, and the size is a crucial factor in our decision-making process. Could you provide information on the largest sizes currently available, along with any relevant specifications? Additionally, if there are any options for customization in terms of size, I'd love to hear about those as well. This will help us in assessing how well your products can fit into our inventory needs. Looking forward to your response!