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IPC Code(s): F16L9/127, B29C48/00, B29C48/03, B29C48/09, B29C48/151, B29C48/285, B29C63/00, F16L9/06, F16L9/10, F16L9/128, F16L11/115, F16L58/10 ...ategory:B29C48/03]][[Category:B29C48/09]][[Category:B29C48/151]][[Category:B29C48/285]][[Category:B29C63/00]][[Category:F16L9/06]][[Category:F16L9/10]][[Cate ...