This part of GB/T 3478 specifies the test method for the straight cylindrical involute splines. This part is applicable to the inspection of splines manufacture
This Standard specifies the requirements, inspection methods, inspection rules, packaging, marking, storage and transportation of CR1211, CR1212, CR1213 in CR12
This standard specifies general specifications for acceptance, packaging, marking and certification for section steel (steel bar and rod). This Standard is appl
This standard specifies the measurement of the performance change of plastic specimen as immersed in liquid chemical reagent without being affected by external