This series of digital refractometers are developed by completely upgrading from our DRB SERIES with high level micro- processors and powerful memorizers, which make them have....

This series of digital refractometers are our new products developed in year 2005 to meet our customers' requests for minimization and low-pricing of products. They are developed....

This series of refractometers are our basic products, we have more than 10 years experiences for producing and selling them, the excellent quality and cheap prices made them have....