You could list it under Type 022 but say "Retired" in the quantities column like what you did with J-6. Otherwise, you might as well as remove some other equipments that are not in service such as the DF-2 and QBZ-87. Also, the Type 56 rifle can be a subsection under Type 56 assault rifle (AK-47) and mention that it's used in ceremonies and by the honor guard.