gas r141b-r134a gas refrigerant is a good example of efficient production of Hangzhou E cool refrigeration Co.,Ltd. We select superior raw materials in a short time which only come from qualified and certified suppliers. Meanwhile, we strictly and quickly conduct testing in every phase without compromising the quality, ensuring that the product will meet the exact requirements.. In order to build confidence with the customers on our brand - Arkool, we have made your business transparent. We welcome customers' visits to inspect our certification, our facility, our production process, and others. We always actively show up in many exhibitions to detail our product and production process to customers face to face. In our social media platform, we also post abundant information about our products. Customers are given multiple channels to learn about our brand.. We have built a strong customer service team - a team of professionals with the right skills. We organize training sessions for them to improve their skills such as excellent communication skills. Thus we are able to convey what we mean in a positive way to customers and provide them with the required products at Arkool Refrigeration in an efficient manner..