Shenyang TX Testing Instruments Inc. founded in 1993 with 5.6 million registered capital and self-built 4600m2 factory. We are professional manufacturer of portable hardness testers used on-site for fast and accurate hardness testing, Including Webster, Barcol, Portable Rockwell and Brinell hardness testers, which have been widely applied in Aluminum& steel industry; energy& power industry; metallurgy& heat treatment; casting& forging; mould& pressure vessel; and automobile industry. The accuracy of all hardness testers comply with ISO and ASTM standards. Over the past 30 years, we have continuously developed new products, each year we have new products put into the international market, and obtained patents in many countries. Our products continue to be exported to all over the world, and the quality of our products is widely praised by foreign customers.