Our factories have been audited by TÜV. The main controls include documents, procurement of materials, production processes, final inspection and tests, calibration of tools and equipment, non-conforming products and corrective actions for non-conformance.

Different materials and casting performance tests can be done by FLEU, such as X-Ray, impact test at +20℃ to –196℃, mechanical property test at –45℃ to +400℃, torsion test and so on.

Through rigorous testing and inspection procedures, FLEU can ensure that the products' materials and dimensions can meet such as the ISO EN and ASTM standards and customers requirements.

For every shipment, FLEU can provide the 3.1 certificate or 3.2 certificate by TÜV.