美国采购需求：硝酸铵钙、三重过磷酸盐、磷酸二铵、磷酸二铵、肥料、氮磷钾肥料

I'm interested in getting more detailed information about the products you're offering, including specifications, materials, and any relevant certifications. Additionally, could you provide me with your pricing structure? I'd like to understand the various price points based on different quantities or any bulk discount options you may have. Also, if you have any product catalogs or brochures available, that would be great. I'm looking to compare options and gather all necessary details for a potential order. Let me know if there are lead times or any special terms I should be aware of. Looking forward to your prompt response!