by drawing or extruding,

Full Title

Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags > Manufacture of glass fibres or filaments > by drawing or extruding,

Child Classifications

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• C03B 37/0203
• C03B 37/0216
• C03B 37/022 from molten glass in which the resultant product consists of different sorts of glass or is characterised by shape, e.g. hollow fibres
• C03B 37/025 from reheated softened tubes, rods, fibres or filaments
• C03B 37/03 Drawing means, e.g. drawing drums