We strongly claim to be 'The Quality You Can Trust' in order to ensure the best quality of products to our consumers and to satisfy our client demands based on the company's quality, environmental and health and safety policy. We have also had the honor to work with the most well known and leading soft carbonated drink and mineral water producers in Iran such as the COCA – COLA Company, PEPSI, ASHI MASHI and mineral water companies licensed by NESTLE.

We at Door Plastic Tehran are one of the officially approved suppliers of the coca-cola company and our products have been put to the test in the Pepsi company laboratory in Canada and therefore we have received this company's approval as well.

Our closures are produced under the license of our business partner, CORVAGLIA Switzerland.

We have also been granted with the ISO 9001:2000 certificate in quality management, ISO 14001:2004 and ISO 18001:1999 in order to constantly improve the productivity of our organization and to provide our customers with the best quality closures possible.

Also, we have been equipped with professional top of the line laboratory equipment for quality testing in accordance with world standards in order to test products in different levels of the production process. This is another way of proving the high quality of our products.