We are a ISO9001, ISO 14000 certified company, In order to enable better performance of fasteners, the purpose of key to quality control testing of fasteners is to ensure that each fastener meets the corresponding standards (DIN, ISO, IFI, ASME,,, etc). The test usually involves whether the test sample can pass the tensile strength, proof load, torque test, hardness test, chemical composition analysis, and other various test programs. We follow the standard quality management procedures for internal production and provide effective quality assurance to the outside world. Based on the tenet of survival by quality, Holy hardware enhances the competitiveness of enterprises in the market and strives to climb the peak of quality.