At ZZ, we take quality seriously. Our production facility is equipped with advanced testing instruments that allow us to inspect everything from raw materials to finished products. We conduct thorough tests for chemical composition, microstructure, hardness, tensile strength, and more. This ensures that every component we produce meets high standards of quality.

We also have 11 high-precision coordinate measuring machines (CMM) from Germany, capable of measuring diameters up to 6000mm. With additional tools like profilometers and roundness testers from the UK and Germany, we can precisely measure the shapes of bearing rollers and rings, making sure they meet the exact design requirements.

Our entire production process is certified to meet the GB/T 9001-2016/ISO 9001-2015 quality standards. Additionally, we've earned certifications from major global classification societies such as DNV, ABS, BV, KR, NK, LR and CCS. These certifications confirm our commitment to delivering reliable, high-quality products to our customers.