Surveying and Mapping Instrument | Jinke Instruments (certified) | surveying instruments provided by the Instrument Co., Ltd. Qingdao Branch. Instrument Co., Ltd. Qingdao Branch (www.qdjk17.com) is specialized in the "mapping equipment, analysis equipment, testing equipment, flow meters, optical instruments, temperature instruments," the enterprise, the company adhering to the "honesty, hard service" philosophy, to provide you with the highest quality products and services. Welcome to inquire! Contact: Li Yongjie. Laser vertical collimator is an optical collimation principle of surveying instruments, will coincide with the collimation produce visible laser plumb line so as to align the reference point for positioning instruments surveying instruments species, commonly used for controlling the tool axis measured up to vote . In the construction and installation of high-rise buildings, towers, chimneys, elevator, large organizations equipment and other occasions has been widely applied. In my past experience in construction is that, but if a big circle to die, you'd better take the machine over time professionals corrected it. (Preferably adjusted to not circle or circle minimum) when there is a layer of vertical lines can not put a stamp ... foot tower is dedicated land surveying equipment, surveying instruments offer for railways, highways, cities, mines, irrigation, farmland capital construction, defense and other engineering topographic survey. Series aluminum factory production of foot tower in the timber, printing, manufacturing, and other surveying instruments has its unique plants, especially the tower foot telescoping handle and more comfortable positioning structure, solid and durable properties, domestic foreign customers wide acclaim. Aluminum foot tower Length: 5m * 5 systolic dimensions: 1.24m Weight: 1.5kg aluminum foot tower Length: 5m * 4 contraction Size: 1.46m Weight: 1.4kg aluminum foot tower Length: 3m * 3 systolic dimensions: 1.28m Weight: 1.1kg