尼泊尔采购需求：PBT POY、PBT DTY、PBT复合材料、其他纱线

I'm looking for a reliable supplier for polyester yarn. Specifically, I'm interested in various types that can cater to different applications. Could you provide me with detailed information including the specifications, available colors, and any variations you might offer? Additionally, please let me know about your pricing structure, minimum order quantities, and lead times for delivery. It would also be helpful to understand any quality certifications or standards your products meet. I'm keen on establishing a long-term partnership, so I'm looking for competitive pricing and consistent quality. Looking forward to your prompt response!