Micro tube elements:

These micro tube elements are now frequently used for heating nozzles, because these micro tube elements can achieve a higher power with a small size and are hermetically sealed. This means that dirt can never enter the element, which could cause it to malfunction. The surface load can be achieved up to 10 W/cm² (recommended), which means an extremely high heat output within a considerably small size. The tube temperature of these elements can reach a maximum of 750° Celsius. However, this is highly dependent on the set operating temperature of the system. It is advised to use the element with the built-in thermocouple to prevent internal overheating of the element. Due to the small size of the element, it can be wound on a shaft of at least 10 mm. As standard, these are supplied straight after which the customer bends/winds them to the correct size.

In the link you can see the different versions in power and length, which are supplied as standard in a stretched form or bent according to your drawing at an additional cost (if possible).