50 mesh to 400 mesh domestic copper mesh ordinary carbon film TEM transmission e

Button battery shell, button battery shell CR2032 CR2025 CR2016, gasket, spring

Sealed five port electrolytic cell with glass F-shaped inlet and outlet pipes, l

Sodium sheet 99.7 button/button battery negative electrode test disk Sodium batt

Supply lithium sheet 99.9 metal disc buckle battery negative electrode sheet 100

Hydrothermal synthesis explosion-proof reactor