"With the increase in world population and housing for the reduction in high-rise building construction will be the future trend of development,which is destined need large-scale use of lifts.Lifts as a means of delivery,construction,has a simple,easy operation,from top to bottom the advantages of carrying a large quantity ."
"The first design of the overall design,the basis of the maximum load to carry and choose a suitable winch and then proceed to balance the design of iron,depending on the status of its work force in strength and a check.Suspended for the final column Design,design in different conditions of work,Analysis and intensity of checking.Lifts to ensure the smooth conduct of normal work."