This Document specifies the cross-sectional shape, size and tolerance, appearance and weight of titanium and titanium alloy bars and wires. This Document is app

This document specifies the terms and definitions, working principle and main structure, requirements, test methods, inspection rules, marking, packaging, trans

This standard specifies the test process, test requirement model, test types for the performance of system and software. This standard applies to the analysis,

This document specifies the terms and definitions, principle, reagents or materials, equipment, test procedure, and test data processing of the test method for

This Standard specifies terms and definitions, classification and codes, dimensions, appearance, weight, technical requirements, test methods, inspection rules,