菲律宾采购需求：和纸胶带、计划贴纸、牛皮便签、日记卡、翻领别针、金属书签

I'm reaching out to inquire about yellow letter envelopes that have specific dimensions and features. We are interested in a product that aligns with our requirements, particularly focusing on the size and thickness specifications. Please provide details regarding the material used, printing options, and any available customization. Additionally, I'd appreciate it if you could share your pricing, minimum order quantities, and lead times for production. If there are any samples available, that would be helpful for us to evaluate the quality before placing a larger order. Looking forward to your prompt response so we can further discuss this opportunity.