南非采购需求：BFS、屋顶瓦、屋顶瓦、沥青瓦、沥青瓦、沥青屋顶瓦

I'm looking for a quote on an office space measuring 4x3 meters. Could you provide details regarding the pricing, materials used, and any available customization options? Additionally, I'd appreciate information on the lead time for production and delivery, as well as any warranties or after-sales support you offer. If you have any recommendations or popular options within this size, please include that as well. Thank you!