越南采购需求：聚氨酯、聚氨酯催化剂、聚氨酯胺催化剂、胺催化剂、聚氨酯金属催化剂、二月桂酸二丁基锡 (Dbtdl)

I'm reaching out to inquire about the availability of Mannich polyol that meets specific criteria for our upcoming project. We are looking for a product with a hydroxyl value in the range of 450-490, ensuring optimal performance in our applications. Additionally, the polyol should possess a functionality of approximately 4.0 to align with our formulation requirements. Furthermore, viscosity is a crucial factor for us; we're seeking a product with a viscosity at 25°C between 8000 and 12000 cps. If you can provide detailed information on potential options, including pricing, lead times, and any relevant technical data sheets, it would be greatly appreciated. We look forward to your prompt response to facilitate our decision-making process.