2Research on primary crystal graphite and shrinkage void tendency of heat-resisting malleable nodular graphite cast iron452-454
4Structure and properties of CrMo steel annealed in series of temperatures after cool deformation459-462
5Influence of surface treatment on hardness and residual stress as well as contact fatigue properties of 40 Cr steel463-466
9Noise elimination and data compression of pipeline magnetic flux leakage signal based on bi-orthogonal spline wavelet479-482