A: First of all, most of our raw materials come from Taiwan Walsin Lihwa, Jiangsu Wujin, Zhejiang Jiuli, Tsingshan Iron and Steel, and other domestic stainless steel well-known enterprises. Secondly, most of our employees have more than 10 years of production experience, they are familiar with technical standards, and how to control them. Good quality, secondly our inspectors are very strict, and will never put the product into storage because of any small flaws. Finally, we will carry out all the finished products, water pressure, ultrasonic or eddy current testing, as well as some mechanical properties, chemical composition testing, and third-party inspections commissioned by the customer.