(1)Using for lifting the oil drum in vertical direction.
(2)It can be used in single or in pairs, the working load limit means the maximum weight the single clamp can bear.
(3)When lifting, any collision with other things should be avoided.
(4)The proof test load is 1.5 times of the working load limit, breaking load is 3 times of working load limit.
(5)Please read the manual carefully before use.