Helmer Net - your expert for hold-open systems in southern Germany It is a fact that approx. 70 % of all hold-open systems on the market are not subject to regular inspection, maintenance and repair. This neglect can mean that both human life and prop ...
Helmer Net - your specialist for SHEV systems in the Munich area Smoke and heat extraction systems remove smoke and heat from burning buildings. This keeps escape routes and access routes for the fire department smoke-free.What are the advantages of a ...
