SITRO GROUP, with over 25 years of dedicated R&D and manufacturing experience, is a leading pioneer in the field of precision metallurgical instruments. Since 1998, we have specialized in designing and producing advanced Portable and Automatic Metal Hardness Testers under the SITRO brand. Our flagship innovations, such as the SITROSOL1, represent our commitment to “Zero Restrictions” in hardness testing, serving critical industries including Aerospace, Automotive, Oil & Gas, and Heavy Manufacturing. All our products comply with international standards such as ASTM A956 and DIN 50156, ensuring uncompromising accuracy and reliability for global quality control.