欧美黄片一区二区三区,无码中文字幕va精品影院,国产一区91,欧美日韩高清一区二区三区

XRF analyzers from Elvatech is a right choice for hundreds of applications. Elvatech Ltd. Company is an R&D enterprise based in Kiev, Ukraine. Since 1991 it has been engaged in scientific instrument-making specializing in design and manufacture of electronic, vacuum, and spectrometric equipment, automated data collection and processing systems, and analytical software. It's main products （XRF analyzer and metal analyzers） are used in industrial, research and academic laboratories worldwide.