... by LCD. With ISO certification.Could offer OEM concrete test hammer Explanation: Consistent withGB/T9138-1988 standards and JJG817-93 ... rebound values, the outliers can be automatically removed.6. Test hammer using imported parts, mechanical parts machining high precision, long ... lanes5. 2,1.5VVAAA alkaline batteries6. HT225-w Test Hammer host computer lanyard7. HT225-W CD-ROM data management program8 ...