美国采购需求：钥匙扣、个性化金属钥匙扣、定制金属钥匙扣、金属钥匙扣、定制金属钥匙扣、空白金属钥匙扣

I am reaching out to inquire about pricing and other details for an order of 28,000 keychains along with 200 display racks. We're looking for a range of options regarding styles, materials, and color choices for the keychains. Additionally, I'd like to know if you can customize the display racks to fit our branding needs. Could you please provide information on lead times, shipping costs, and any available discounts for bulk orders? Understanding your payment terms would also be helpful. If you have a catalog or samples of the products, that would be great for review. Looking forward to your prompt response so we can proceed with this order!