在IRIS认证的同时，Liebherr-Transp.tionSystemsMarica也成功地更新了其ISO 140001和OHASAS 18001认证。这显示了该公司如何积极和成功地开发和如何制造一系列的加热，通风和空调系统（HVAC）是尽可能有效和可靠的客户。
Liebherr-Transportation Systems Marica EOOD, Radinovo (Bulgaria), successfully renewed its IRIS (International Railway Industry Standard) certification. The auditors of the German certifying body DQS GmbH carrying out the assessment were very satisfied with the continuous improvement processes in place. .
In parallel to the IRIS certification, Liebherr-Transportation Systems Marica also successfully renewed its ISO 140001 and OHASAS 18001 certifications. That shows how positively and successfully the company is developing and how series manufacturing of heating, ventilation and air conditioning (HVAC) systems is being made as efficient and reliable as possible for the customers.
