CREATE TABLE table_28657 ("Name / designation" TEXT, "Year of introduction" TEXT, "Country of origin" TEXT, "Primary cartridge" TEXT, "primary user" TEXT)

If the Country of Origin is Denmark and the year of introduction is 1962, what is the primary cartridge?
SELECT "Primary cartridge" FROM table_28657 WHERE "Year of introduction" = '1962' AND "Country of origin" = 'Denmark'
SELECT "Primary cartridge" FROM "table_28657" WHERE "Country of origin" = 'Denmark' AND "Year of introduction" = '1962'