What are lay lines?

Lay lines are identification markings on the hose. They play a crucial role in providing essential information regarding the specifications and details of the hose itself. These markings can include the manufacturer's name, the type of materials used, and the hose's pressure rating, among other details.

These features help users easily identify and select the correct hose for a particular application, ensuring compatibility and safety in fluid transfer. The presence of lay lines assists in maintenance and replacement decisions, serving as an important reference tool throughout the hose's lifecycle.

The other options relate to different aspects of hose specifications and regulations but don't accurately represent what lay lines specifically signify. For example, thickness measurements pertain to the physical dimensions of the hose, while safety instructions involve operational guidelines that may not be included in the marking. Fluid type specifications refer to the kinds of fluids that can be safely transferred, which is also distinct from the identification purpose of lay lines.