Zhejiang Mingxin Stainless Steel Co., Ltd. applies hydrostatic testing as part of its quality control process. Each tube undergoes hydrostatic testing before shipment, using testers and other professional equipment to verify sealing performance under rated pressure.

This testing is combined with eddy current flaw detection, ultrasonic testing, and tensile testing to ensure products meet applicable standards. The company’s seamless pipes, bright annealing tubes, and heat exchanger tubes are manufactured to GB, ASTM, DIN, and JIS standards, covering outer diameters from 6mm to 630mm and wall thicknesses from 0.5mm to 30mm. Through this systematic testing approach, Mingxin provides reliable quality assurance for the petrochemical and pharmaceutical machinery industries.