Huake Instrument Co., Ltd is  the professional 
manufacturer o fvarious testing and measuringi nstruments established in Shenzhen, China. Our main products include Hand Held Refractometer,pH meter,
and Digital Thermometer.The aim  of our company is toenlarge ourbusiness by satisfying all of our clients with top quality and most competitive prices.
   We also accept OEM order form, and we always guide our customers to develop other new products in this field in China.

http://www.instrument-china.com
honghan@instrument-china.com