RC4 sliding door: the plus for your security When it comes to your security, you should focus on quality. DIN EN 1627 describes burglar-resistant components that make it more difficult for burglars to break in through windows or doors, for example. The standard comprises a total of six resistance classes. The higher the value or … Read more
Our human body constantly needs oxygen (O2) to maintain vital bodily functions. The external respiration transports the O2 to the lungs, where it is then transported via the internal respiration with the blood circulation to the cells. Here the gas is “burned” and energy is gained for the vital body functions. Without oxygen supply, this … Read more
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