加拿大采购需求：折叠纱窗，窗户蚊帐，窗户蚊帐，防宠物防蝇纱窗，防爪子网，旋风宠物网

I'm interested in sourcing pileated screen door and window systems. It's essential that the profiles and plastic joints are of the highest quality to ensure durability and performance. Additionally, please make sure that the wheeled components at the bottom, specifically the bottom roller or carriage, are constructed from premium materials. This is crucial for optimal functionality and longevity. Looking forward to your detailed response!