All raw materials and supplementary materials used in production are tested in our laboratories to ensure they meet or exceed all applicable standards they are tested for. Suppliers' performances are recorded automatically in our computer database system.
This way we guarantee that we would only work with suppliers who can meet or exceed these performanca standards. The mixtures used in profile extrusion are tested in accordance with the technical conditions and standards then allowed to advance to the next stage of the process only if favorable test results are obtained.
Following the completion of extrusion and additional finishing operation, where applicable, products are checked against product control criteria established through product design stage and sent to the transfer warehouse upon meeting all criteria. All the test equipment and devices used for product standard compliance verification are maintained properly with regular calibration programs to ensure accurate testing process.