The valve can prevent freezing , suitable in cold area 具有防冻性能,适用于寒冷地区。
2.
Experiment on performance of air - cooled heat pump chiller in anti - freezing 风冷热泵冷热水机组防冻性能实验研究
3.
Fenglian environment - friendly white emulsion is the key quality - reliable brand of china environmental protection products for its high adhesion and freeze - proof performance 本厂生产的凤联牌环保白色乳胶,环保性强、粘合强度高、防冻性能好,是中国环保产品质量信得过重点品牌。