Sealing elements must meet the highest quality requirements. Their performance is ensured only when all items are assembled in a true size, clean and correct way. Therefore, each STASSKOL product is subjected to a strict inspection before being shipped to the customer.
This is carried out by a quality control department that is independent from the production. The inspector’s certificate documents the dimensional accuracy and function. Special tests such as the oxygen purity testing are also carried out and certified on customer request.