1 Membranes separate their contents from the environment. 2  Cell membranes separate the cell contents from its environment, and organelle membranes separate the organelle contents from their environment. 3  Membranes regulate the movement of materials through them.
The Wirtgen Group sees itself as an expert partner. for the construction industry. Thanks to our in-depth. understanding of everyday work on construction sites, we have the necessary knowledge to continually assess. products and services for their practical suitability.
The overseas production sites of the Wirtgen Group, located in Brazil, China and India, meet the same high standards for machine quality and production efficiency. For the customers, taking ownership of a machine marks the start of a long-term service relationship.