Hangzhou Top Instrument Co., Ltd. is a specialized manufacturer & seller of agriculture and forest measuring instruments. For many years, our company has been concentrated on seed measuring, grain food testing, soil examine and related professional instruments. Up to now, we have developed soil moisture testers, soil tight testers, area testers, germination chambers, temperature and humidity testers, kinds of separating equipment and other new products. At the same time, as the biggest busin... ...[More..]