Which type of ropes are primarily used for heavy lifting and lowering?

Bull ropes are primarily used for heavy lifting and lowering due to their strength and durability. They are designed to carry significant loads and withstand harsh conditions, making them ideal for tasks that involve securing or hoisting heavy objects. Bull ropes are commonly used in rodeo settings, particularly during events that require strong and reliable ropes to manage the movement of animals and equipment.

Hand lines are typically used for lighter tasks and may not be suitable for heavy lifting. Throw lines are designed for throwing and retrieval, often in rescue situations, and their construction is not meant for sustained heavy loads. Climbing ropes, while strong, are specifically designed for climbing and safety purposes, not for lifting or lowering heavy objects. Thus, bull ropes stand out as the appropriate choice for heavy lifting and lowering applications.