Shenyang TX Testing Instruments Inc. is one of the professional portable hardness tester manufacturers and suppliers, founded in 1993 and a self-built factory occupied 4,600㎡. TX hardness testers have provided many unprecedented ways of on-site, fast, and accurate hardness testing for metal materials and parts, they are widely used in Oil & Gas, Electric Power, Heat Treatment, Metallurgy Industry, Metal Machining, Aerospace Industry, Aluminum Industry, Die & Mold industry, Auto Parts and Others industries.