新加坡采购需求：袋和包，拉链自立袋，异形袋，吸嘴袋，八边封拉链袋，定制吸嘴袋

I'm looking for a standing pouch suitable for liquid soap packaging. The dimensions needed are approximately 12x18cm, designed to hold around 380ml of product. Please provide information on the materials available and any customization options for the pouch design. Additionally, I'd like to know about your pricing, minimum order quantities, and lead times for production and delivery. If you have samples available, that would be great to review as well. Looking forward to your prompt response!