Acknowledging and knowing the importance of guaranteeing the quality of manufactured products in line with the rights of consumers, Adopen Plastic Persian Company (Wintech) provided the necessary arrangements, then conducted an audit and test by the German SKZ Institute and based on the requirements of the RAL-GZ 716 standard. succeeded in obtaining the "Ral Quality Mark" for production profiles from the German Ral Institute, and the name of Adopen Company has been registered as a member of the door and window system supplier on the GKFP website. The RAL certificate is one of the most reliable certificates guaranteeing the quality of door and window system components in the world, among more than 70 UPVC profile producing units in Iran, Adopan is one of the few companies that has succeeded in obtaining this certificate. And in the northwest region, it is operating as the only holder of the RAL certificate.
