墨西哥采购需求：永久记号笔、永久墨水、编码打印机、快干墨盒、钢笔墨水、永久性记号笔墨水

I'm looking for a high-quality heavy ink that offers exceptional wash resistance, specifically designed for use with Epson desktop printers. It's important that the ink maintains its integrity and vibrant colors even after exposure to water or washing processes. The durability and performance of the ink are key factors for my purchasing decision, so I'd appreciate any details on your product's specifications and performance metrics in this area. Additionally, I would like to know about the available colors and any bulk ordering options you might have. It would also be great to understand the pricing structure and lead times for delivery, as I'm eager to find a reliable supplier for this type of ink. If you have any sample packs or promotional materials that showcase the ink's capabilities, please let me know. Looking forward to your response!