80/156 conical twin screw barrel for PVC sheet, PVC wood plastic foam board

• screw cylinder material :

• 2 knots cylinder alloy length :

• screw alloy length :

• whole cylinder alloy length :

• screw alloy length :

• screw cylinder alloy depth :

• hardness after adjustment :

• nitriding depth :

• surface hardness after adjustment :

• screw straightness :

• cylinder straightness :

• cylinder concentricity :

• cylinder centrad :

• cylinder divided into :

• screw divided into :

• applications :