Dandong Bettersize Instruments Ltd. established in 1995, is a renowned manufacturer of particle size analyzers and has become a research and development base of relevant technologies in China. Our major products are 4 serious of instruments, i. e.Laser particle size analyzer, image particle size analyzer, sedimentation particle size analyzer and powder integrative characteristic tester in more than 23 models. Our products have been sold to 32 provinces, municipalities and autonomous regions in China and exported to more than 23 countries and regions.