You S04 H255 [new] -

However, based on common naming conventions in technology, you are likely looking for information on one of the following two devices. I have created a helpful write-up for the most probable match, followed by a secondary possibility.

The "S" often denotes Structural steel. The "04" typically refers to a specific series within a manufacturer's catalog or a specific chemical composition designed for corrosion resistance or weldability. you s04 h255