博茨瓦纳采购需求：温室，温室，玻璃温室，水培，气培水培，冷却风扇

I'm reaching out to inquire about the pricing details for two tunnel units. Could you please provide a breakdown of the costs, including any additional fees for shipping or handling? Also, let me know if there are bulk purchase discounts or promotional offers available at the moment. Additionally, I would appreciate it if you could share details about the expected delivery time and warranty information for these units. If there are any specific models or configurations I should consider for better pricing or performance, feel free to include that info as well. Looking forward to your prompt response!