A top drive is an essential mechanical device in oil field drilling since it provides the necessary torque for the drilling operations. Manufacturers in the oil and gas industry typically perform in-housing testing and classify the Safe Working Load of top drives. Testing a top drive requires a unique test stand. thus making testing top drives from other manufacturers a difficult chal... https://www.kingarte.com/product-category/grinders-food-servicecommercial-kitchen-equipmentfood-preparation-equipmentcommercial-meat-processing-equipmentmeat-choppers/