Book of Donmon Teith

This Standard specifies the scanning electron microscope detection method for microstructure observation and defect analysis of tungsten carbide powder. This St

This Standard specifies the terms and definitions, symbols, codes and marks, order content, technical requirements, test methods, inspection rules, packaging, l

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 Part of GB/T 39560 specifies the method for quantitative detection of hexavalent chromium [Cr (VI)] in polymer and electronic samples. The determination me

This document specifies linear and angular dimension tolerance grades and limit deviations of stamping pieces without tolerance indication. This document applie