Zonwon was built on 2009 in Hangzhou,China. Aiming to provide "Auto Lab" for all the research department. We provide sample preparation and measuring instruments,the product line including: IVS Series Ubbelohde viscometer, D25/DP25 Pipette, A6 Furnace, P12 sample dissolving instrument and ,FHJ-8 Tube heater reactor. The best choice for high polymer material sample preparation and viscosity testing.