Including "stress-strain test program" (Revised), "Endurance fatigue test standard," "residual stress test method", "pin bushing friction wear test method", "face wear test method", "laboratory management system", etc. . And participate in the revision of the "performance-based development and desig

Including the stress-strain of outline of the test (Amendment), the durability fatigue testing standards, the residual stress test methods, the sales of friction wear stage set of testing methods, the face of wear, the laboratory test methods of management system, and so on. The hydraulic excavator

Including "Stress Strain Test outline" (revision), "Durable Endurance test Standard", "Residual stress Testing method", "Sells Axle bushing Friction Wear test Method", "End surface Wear test Method", "Test chamber Control system" and so on.And participation has revised "Hydraulic pressure Excavator

Including the stress-strain test commitments (Amendment), the endurance fatigue testing standards, the test method for residual stress, and the PIN bushing friction and wear test method and the face-wear testing, such as methods, the laboratory management systems. And participated in the amendment o

Including the stress-strain test commitments (Amendment), the endurance fatigue testing standards, the test method for residual stress, and the PIN bushing friction and wear test method and the face-wear testing, such as methods, the laboratory management systems. And participated in the amendment o