Rotating lifting ring, also known as universal lifting ring or rotating lifting ring screw, is used for special lifting occasions with angle. It can realize 360 degree horizontal rotation and 180 degree up and down rotation, with four times the safety factor in any direction. Compared with the traditional lifting ring screw (dead lifting ring), it is more flexible and can meet the lifting requirements in all aspects. The manufacturing materials are mostly 35CrMo alloy steel and 42CrMo alloy steel in China, and generally Ni-Cr-Mo alloy steel or Grade 100 materials are used for import. According to the connection mode with the lifted object, it can be divided into two types: screw hole type lifting eye and bolt type lifting eye. According to the lifting angle, it can be divided into: straight pull lifting ring, side pull lifting ring and straight side pull universal lifting ring.