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Application filed by Zaklad Doswiadczalny Przy ZaklfiledCriticalZaklad Doswiadczalny Przy Zakl
Priority to PL19880777ApriorityCriticalpatent/PL112889B1/pl
Publication of PL198807A1publicationCriticalpatent/PL198807A1/pl
Publication of PL112889B1publicationCriticalpatent/PL112889B1/pl
PL19880777A1977-06-111977-06-11Method of manufacturing pipes with spirally arranged external fines and tooling system for manufacturing pipes with external spirally arranged fines
PL112889B1
(en)