All products in the SPM product group are products with a specially designed air vent structure suitable for body anatomy. They do not contain heavy metals harmful to human health and water-based adhesives are used during the joining of multi-layered products.
![All products in the SPM product group are products with a specially designed air vent structure suitable for body anatomy. They do not contain heavy metals harmful to human health and water-based adhesives are used during the joining of multi-layered products.](upload/content/content_2023-05-22_14-46-03.png)