Uses and Features WTC-H Concrete Test Hammer for nondestructive detection structure and concrete compressive strength of the instrument. The surface hardness of concrete structures by detecting the estimated strength of concrete structures. The instrument uses a spring driven valuation bomb shells hit the hammer , shells hit one end of the rod to detect contact with the shells hit the surface of the concrete elements try the other end face, resulting in resilience. In the role of resilience, playing hammer push pointer sliders are moved so as to obtain a pointer readings reasonable instrument structure laser vertical collimator power, easy correction laser vertical collimator correction, repair small volume vertical collimator, light weight laser vertical collimator offer, but to carry suitable for field testing of high-end Chinese surveying instruments, Sanding manufacturing STS-750 series full Station instrument, the world's leading technology, craftsmanship and manufacturing. Adapt to a variety of measurement environment: heat, cold, rain; competent major measurement tasks: mapping, engineering, architecture. Excellent protection and environmental adaptability, the instrument in a variety of complex and harsh operating conditions stable performance as usual, ready to guarantee the reliability of measuring outcomes, to ensure maximum efficiency in the use. 750 total station measurements rich program that always make you handy. Laser vertical collimator offer, Jinke instrumentation (certified), vertical collimator provided by Qingdao Branch of the Instrument Co., Ltd. Qingdao Branch of the Instrument Co., Ltd. (www.qdjk17.com) is Qingdao, a leader in analytical instruments, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Branch of the Instrument in leadership with the staff warmly welcome all inquiries negotiations to create Branch instrumentation a better future.