The thing is a lot of the crash bars seen in mainland China are made from inferior metal, no stronger than tin. The metal used for the application can be found in many instances for motorcycle crash bars, engine guards, car, van or SUV nudge bars and stairway bannister rails and such like. A little hit with a piece of 4x2 (wood) can leave a substantial "ding" in the metal. They may look the goods, all chromey but they are about as reassuring as everything else here is.