Ahansan Company has improved the quality of its products by relying on the definitions mentioned in the 9000 series standard. For this purpose, the quality control personnel in the Ahansan Company workshop are separate from the construction personnel and, with comprehensive supervision throughout the entire construction process, try to improve the quality of the final product. Preparation and control of Q C PLAN for each project is carried out according to it, if necessary, with the agreement of the employer.