What markings should be identifiable on a custom-designed lifting accessory?

The correct markings on a custom-designed lifting accessory are critical for ensuring safety and compliance in lifting operations. The inclusion of the Working Load Limit (WLL) is essential, as it indicates the maximum load that the lifting accessory can safely handle. This information is vital to avoid overloading, which can lead to equipment failure and accidents.

Furthermore, a serial number allows for easy tracking of the specific accessory throughout its lifecycle, facilitating proper maintenance, inspections, and traceability. The weight of the lifting accessory is important for understanding its overall impact on lift calculations, especially when multiple loads are involved. Lastly, the manufacturer’s name is crucial for accountability and for obtaining customer support, should any issues arise concerning the design or performance of the accessory.

In the context of the other options, while they contain some important information, they do not encompass all critical aspects related to safety and identification like the correct choice does.