德国采购需求：无人机、遥控车、益智玩具、积木、游戏桌、国际象棋

I'm reaching out to inquire about collapsible aircraft options that your factory offers. We're particularly interested in models that emphasize efficiency and durability, as these features are vital for our upcoming projects. A detailed overview of the materials and specifications would be greatly appreciated. Additionally, please provide information on available customization options, lead times for production, and pricing tiers. Understanding your capabilities in meeting varying demand levels would also help us align our purchasing plans. Looking forward to your prompt response!