(entering zone) and zone 2. At the barrel end, the die head was indicated as zone 3 with die diameter, 1.6 mm, 2 die orifices. Each temperature zone was heated by means of electric heating,
(enteringzone) and zone 2. At the barrel end, the die head was indicated aszone 3 with die diameter, 1.6 mm, 2 die orifices. Each temperaturezone was heated by means of electric heating,