jp2001260214a

JP2001260214A - Manufacturing method of extruded tube

JP2001260214A JP2000070369A JP2000070369A JP2001260214A JP 2001260214 A JP2001260214 A JP 2001260214A JP 2000070369 A JP2000070369 A JP 2000070369A JP 2000070369 A JP2000070369 A JP 2000070369A JP 2001260214 A JP2001260214 A JP 2001260214A Authority JP Japan Prior art keywords layer pipe head extruded heated Prior art date 2000-03-14 Legal status (The

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