What is the fine-grained topic of the following text: In Bursa Akçalar Industry Zone, in a 24,000 square meters indoor space, with TUV-certified ISO9001 quality system certificate and eco-friendly production technology, doing production without polluting the world DurFoam, offers innovative solutions that raise the living standards of the final users in all the industries it serves. Only return the topic.
DurFoam's eco-friendly production in Bursa Akçalar Industry Zone