Shopping trolley for use in super market, has security lock with connecting piece and key that are made up of non-metallic material e.g. plastic, which is not affected by electromagnetic radiation and/or does not interact with radiation

摘要

The trolley (1) has a security lock with a connecting piece (4) and a key (5), where the connecting piece and the key are made up of a non-metallic material, which is not affected by an electromagnetic radiation and/or does not interact with electromagnetic radiation. The material can be plastic or fiber such as glass fiber and carbon fiber, composite material.