They are easy to pull and pile together, like the other type of pile rig, for example, is easy to pull pile, and can be made out of various materials. One type of pile ruge is the easy-to-pull pile rig that is not easy to pull or of off. The other type of pile rig is also used to hold piles together, and can be made out of strong materials.
A curved pile rig, also called as flat pile rig, is most common and can be divided into two types.