Jinglong Engineering Machinery (Group) Co., Ltd consists of Guangzhou Jinglong Eng. Machinery Co., Ltd, Xi&＃039;an Jinglong Eng. Machinery Co., Ltd, Changsha Jinglong Eng. Machinery Co., Ltd, Tianjin Jinglong Machinery Co., Ltd. The total production base covers an area of 530, 000 square meters with the world&＃039;s largest automatic production line. It&＃039;s established in 1996 and is one of the biggest professtional construction hoist manufacturers in the world whose annual output ranks among the best globally. Meanwhile, it also has sizable tower crane production. As GJJ has owned a very high reputation in the world, it has become the substitutive name of Jing Long and its construction hoist. In 2009, GJJ has been awarded China Well-known Trademark by the SAIC.