ZC3A Concrete Test Hammer Cement Testing Hammer.
This instrument is in line with technical regulations JGJ/T232001 ZC3A type of hammer used to detect 1060Mpa within the concrete compressive strength, the system standard energy of, showing the value of the system as a pointer direct reading of mediumsized Hammer by national verifiion procedures "concrete Test Hammer" (JJG81793) and the industry .