| 摘要 |
A method and apparatus for continuously forming a laminated tubular body, disclosing the joining of opposite longitudinal edges of a strip of sheet material (5) to form a tubular body, extruding a hollow plastics lining member (1) within the body, expanding the hollow lining member within the tubular body to form a substantially continuous lining, pressure means (66,67,71,72) for pressing the inner lining into sealing engagement with said inner surface, and cutting means (16) for cutting the continuously formed laminated tubular body into preselected lengths. <IMAGE> |
