| 摘要 |
A sheet body (A) extruded from an extruding die (12) is mounted on conveyers (26, 28, 30) immediately and thereby drawdown and the like is inhibited or prevented to suppress deflection in the thickness, length and the like of the sheet body (A). Further, the conveyers (26, 28, 30) include a heater (38) inside thereof and thereby reduction of the temperature of the sheet body (B) can be inhibited or prevented by heating by means of the heater (38). As a result, productivity of the hollow body is improved. |
