Since its inception in 1996,Zhongzhi Testing Instruments CO.,Ltd is specialized in manufacturing varieties of quality inspection instruments, testing equipment and other high-tech products, mainly including programmable constant humidity and temperature testers, high/low temperature testers, high/low temperature testers, cool/thermal impact testers, salt spray testers, aging testers, drying ovens, tension testers and other quality testing instruments. Thanks to several decades of R&D efforts, our company has become a leading provider of testing instruments in the industry, playing a crucial role in the research and development of high-quality and high-value products in the industry. Our major products: (1) Programmable constant humidity and temperature testers (2) High/low temperature testers (3) Universal testing machines (4) High/low temperature testers with rapid temperature change