METHOD OF MANUFACTURING DOUBLE-WALL BLOW MOLDING AND MOLDING OBTAINED THEREBY
PROBLEM TO BE SOLVED: To provide a double-wall blow molding consisting of an inner and an outer blow molding having an accurate shape. SOLUTION: An inner blow molding 1 having been blow-molded in advance is arranged between blow molding molds 24 and 25, a cylindrical parison 35 is caused to descend...
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