(1) applies only to set the lifting rope tools and lightweight work piece moving and lifting, hoisting workpiece slip of the hand or rope shall not be used in a mechanically driven cranes with.
(2) ropes shall not reverse in a row in one direction, so as not to loose or twisted. Such phenomenon, should be promptly eliminated.
(3) ropes in use, no direct contact with sharp objects, such as cannot be avoided should be mat to protect.
(4) when used as a rope rope safety factor shall not be less than 10; when used as rope, safety factor shall not be less than 12.