Shandong Zhongwen Group-- Professional Manufacturer of Tower Crane We successfully developed this new kind of inner climbing tower crane which is used inside buildings. It can greatly save your cost by saving mast sections. The products type contain: QTP20, QTP31.5, QTP40, QTP63, QTp80, QTP125 etc from 2t to 10t payload. Product Description of Inner Climbing Crane � Inner climbing tower crane for construction � New type climbing solution to save your time and cost. � More than 10 modes for your choice � More than 50 years experience ensure reliability � Experienced export products By the aid of the climbing device, the climbing tower crane raises itself by climbing up as the building rises, and it is made up of special base sections, climbing frames and climbing devices. At the beginning of construction, the machine is fixed on the concrete foundation by the aid of a special undercarriage (after climbing up, it is directly supported to the building). Commercial Terms � Price: Negotiable � Delivery time: 10~20 days after receiving advanced payment � Terms of Payment: T/T or L/C � Packing: Standard Exporting Packing � Warranty Terms: At least 12 months Products Certificate: CE, ISO9001:2000 Productivity: 300 sets/month Sales Service : 1�Train the device operators for free; 2�Our technical personnel will be dispatched to site to instruct the installation, adjustment, operation and maintenance on your request. 3�Any time you will get our reply about technical questions in time. 4�After guarantee period is over, we are responsible for providing spare things and components with high quality and low price, so as to ensure the normal work of construction team. 5�Establish customer sale file, in control of device work condition at any moment. If you are interested in our products, please contact us for details. I will give you the best offer after receive your specifications, thanks.