Jing Long Eng. Machinery Co., Ltd./GJJ is one of the subordinate company of China National Construction Machinery Company. Its most registered brand is GJJ. Established in 1996, we are currently a big company with an area of 68, 000 square meters. it has been the most professional manufacturer of building hoist and one important member of China National Building Hoist Association. We are focusing on manufacturing best value all kinds of construction machines including the following: building hoist, material hoist, tower crane, climbing platform and all the parts. We produce, sell, rent and give technical assistance to mentioned above product. We have built long term and friendly relationships with all our customers. We always try our best to offer high quality products with excellent services to our customers. If you are interested in our products, please don&＃039;t hesitate to contact us. We are expecting to cooperate with you in the near future.