蒙古采购需求：Wechem、特种气体、稀有气体、同位素气体、低温学、碳氢化合物气体

I'm writing to inquire about purchasing ammonia gas (NH₃) for our industrial operations in Ulaanbaatar, Mongolia. We're keen to know the available quantities and packaging options you offer. Additionally, could you provide pricing details per ton or per litre? Understanding your delivery terms and lead times is also crucial for us. We're looking to set up a long-term partnership with a reliable supplier, so it would be great if you could share your payment terms as well. Lastly, please include any necessary safety documentation and certificates related to the ammonia gas. Looking forward to your detailed quotation soon via email!