That's just the way it is. Some machines need hoses - a lot of hoses - for different media. For hydraulic oil, cooling emulsions, various gases or water. Additionally to it cables… for power supply… and of course data transmissions… and certainly… control signals too. And the ambient temperature? Increased, as usual… So when the designer finally makes a list of the necessary cables and hoses, the list can be pretty long. The plastic chain often bends under such a quantity. And if we can't support him anywhere? And the ambient temperature is higher than 100 ° C? Then we're glad to have steel chains. And not just any. Steel, stainless, hardened, open or covered. With different partition system. With sliding shoes to reduce friction and prevent chain wear. And for ambient temperatures up to 600 ° C. Plus ... we adapt the width of your chain to your requirements – to milimeters! Do you think that is not the case? So give us a call and ask… but don't ask about delivery dates, because we keep them the same. For years…