MIL-C-20218F, MILITARY SPECIFICATION: CHROMIUM PLATING, ELECTRO-DEPOSITED, POROUS (13 NOV 1984)

MIL-C-20218F, MILITARY SPECIFICATION: CHROMIUM PLATING, ELECTRO-DEPOSITED, POROUS (13 NOV 1984)., This specification covers porous, electro-deposited chromium plating applied to surfaces where a lubricating film must be sustained such as cylinder bores.