Tianjin Jewel Electronic Instrument Co.,Ltd is established in 1995, was a high-tech enterprise specialized in design and producing instrument.
Company located in Tianjin High-tech Huayuan Industry Zone, more than 2000 square meters workshops and products R&D office. 
All of our products are made and assembled by ourselves, from the beginning of the company till now, we've invented and achieved many product patents, besides, because of our products with perfect quality and very competitive prices, we also awarded with very good reputation by users from home and abroad.
Regarding products, our concrete test hammer (HT-225), mortar test hammer (HT-20), brick test hammer(HT-75), digital test hammer HT225V and HT225-W+ are very famous in home and abroad market, besides the above test hammer, we also produce rebar locartor, thickness meter and spectrophotometer.
Our qualified products and satisfying service allow us to be one of your best partners.