tempered aluminum tubing-sliding window profile is a good example of efficient production of Zeyi Aluminum 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 recent years, Zeyi has gradually received a good reputation in the international market. This benefits from our continuous efforts on brand awareness. We have sponsored or participated in some of China local events to expand our brand visibility. And we post regularly on social media platform to effectively execute on our brand strategy of the global market.. 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 Zeyi Aluminum Profiles in an efficient manner..