Persian has a special plural form to refer to things of the same type. In other words, to the different varieties of the same class. It is formed by adding the suffix جات:

Singular Plural
سبزی
sabzi
vegetable
سبزیجات
sabzijât
vegetables of any kind
میوه
mive
fruit
میوه‌جات
mivejât
fruits of any kind
شیرینی
shirini
confection, sweet
شیرینی‌جات
shirinijât
sweets
چربی
charbi
fat
چربی‌جات
charbijât
fat food of any kind, fatty foods
طلا
talâ
gold
طلاجات
talâjât
gold jewelry
کارخانه
kârkhâne
factory
کارخانه‌جات
kârkhânejât
factories of any type