W&J Instrument is a professional manufacture and sales of various electronic balances, moisture analyzers, viscometers and laboratory instruments. After nearly 30 years of development, we have developed and produced various high-precision laboratory analytical balances with accuracy 0.1mg, 0.001g, 0.01g, etc. https://app.goodnightjournal.com/journal/4384d533-69d1-44ce-a6e6-ce9379866fee