The hook is crane

The hook crane or a hook cargo is a load gripping part of the crane mechanism which is intended for gearing and cargo transfer.

The hook crane is widely used on roofing felts and in hook suspension brackets on cranes of all types. Cargo hooks make of steel 20 or 20G.

The hook cargo crane in the marking has figures from (1 to 26) and letters (And yes B) where figures designate the loading capacity of a hook and letter length of a cargo hook. The A - shortened execution of a shaft, the B - extended shaft.