Laboratory testing instruments include: imported ultraviolet exposure tester, constant temperature and humidity tester, tensile tester, X-Rite color matching light box and color difference meter, HHP QC800 bar code detector and other instruments and equipment, as well as a variety of testing software. These instruments allow our labels to ensure that the adhesiveness, outdoor resistance, weather resistance and spot color requirements required by our customers are met. The spot color can be controlled within DE≤2.