According to the number of pot slots: 5 slots, 7 slots, 9 slots, 11 slots
By fuel cent: have firewood, charcoal, gas, electricity
According to the pot groove section shape: there are circular arc, parabolic shape
Still have by material cent: have general steel, have stainless steel; According to the slot into the air can be divided into the air into the type and type.
Multi - machine forming is mainly used for strip and flat.
