ZX 20 each (If interested to get set cards PM me),Solid-state nanopore sensors | Nature Reviews Materials,Compressive behaviors of modular steel shear-keyed grouped tubular columns - ScienceDirect,Arch First and Beam Later: Arch-Rib Integral Installation Construction Technology for Large-Span Tied-Arch Bridge | Journal of Construction Engineering and Management | Vol 143, No 8,Predicting Dependent Edges in Nonequilibrium Complex Systems Based on Overlapping Module Characteristics,