Introducing the cutting-edge D Series of air coolers, a remarkable range of indoor cooling solutions designed to seamlessly integrate with condensing units across a wide variety of cold room settings. This versatile series includes three distinctive sub-series, each precision-engineered to cater to specific temperature requirements: 1. **DL Air Cooler**: Perfectly tailored for environments around 0ºC, the DL model is your go-to choice for fresh-keeping cold storage, ensuring your products maintain their quality and freshness. 2. **DD Air Cooler**: Ideal for maintaining temperatures around -18ºC, the DD model is expertly designed for conventional cold storage applications, preserving your goods with unrivaled efficiency. 3. **DJ Air Cooler**: For the most demanding conditions, where temperatures plummet below -25ºC to -30ºC, the DJ model excels, providing exceptional performance in blast freezer rooms, ensuring rapid freezing and preservation of your products. Choose the D Series of air coolers for unparalleled energy-saving performance and customized cooling solutions that meet your precise refrigeration needs. Experience the epitome of efficient refrigeration with Harbin Dongan Building Sheets Co., Ltd.