PROCESS IS GENERALLY ECONOMICAL WHEN PRODUCING BETWEEN SEVERAL KILOGRAMS (POUNDS) AND MANY TONS, DEPENDING ON THE MATERIAL BEING EXTRUDED. THERE IS A CROSSOVER POINT WHERE ROLLING BECOMES MORE ECONOMICAL. FOR INSTANCE, SOME STEELS BECOME MORE ECONOMICAL TO ROLL IF PRODUCING MORE THAN 20,000 KG (50,000 LB). [2] COLD EXTRUSION IS DONE