First, rigging hardware specifications, type of choice when choosing rigging hardware specifications, must be lifting the load of the size, weight, shape, and the preparation methods used in hoisting the combined effect of factors included in the calculation of the usage considerations, given limit the work force requirements, while working environment, the types of loads must be considered. Must choose not only capable, but also to meet the appropriate way to use the length of rigging, if the number of rigging hardware used simultaneously lifting the load, you must use the same type of rigging hardware; flat rigging hardware of raw materials can not be affecting the environment or load. Whether or soft attachment lug need, must consider carefully the last paragraph of rigging and lifting equipment and auxiliary accessories to match.

    Second, slings restricting the use of point of view when using the soft-hanging ears, flat sling, the minimum length can not be used lug lug less than 3.5 times and maximum thickness of the contact part of the hook and the lug angle can not be more than 20 activities . When connected with a soft-hanging ears, when the sling and lifting equipment, slings and lifting equipment must have been some contact, unless the axial width of the sling does not exceed 75mm, bending radius of lifting accessories must be at least a sling 0.75 times the axial width. For example: slings in the cargo hook on the radius of at least 0.75 times the axial width of the sling. Perhaps because of the width of the fabric part of the cargo hook inside the radius of influence, cargo hook curvature strongly influence the outcome hinder the width of the fabric the scope of a balanced role. Sling is strictly prohibited overload, you must use the correct way to factor some way to limit the work force may have given on the label, multi-combination of sling and the vertical direction can not exceed the maximum angle.