清洗间的环境净化可达到万级，使用洗涤液、HF以及HNO3进行清洗处理，纯水处理可达10MΩ以上，包括最终千级内包装前的清洗要求18MΩ以上，拥有干燥箱以及各种产品的分类清洗方法，保证产品在加工前以及加工后的包装都不受环境以及各种杂质的污染。

        wash room environment purification can reach to million grade purification. Make the cleaning treatment with washing fluid, HF and HNO3. Water treatment up 10mΩ or more; include the cleaning requirement of thousand grade purification final inner packing up to 18 mΩ or more. Have electronic drying box and all kinds of product classification cleaning method. Ensure the products packing in the pre-processing and post-processing are free from pollution of environmental and various impurities.