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Filament：
1. Polyester superfine fiber POY-DTY
production technology.
2. Polyester superfine fiber FDY production technology.
3. Composite differentiation, and function fiber production
technology.
4. Polypropylene (PP) - FDY technology.
5. Polyester mother filament FDY production technology.
6. Nylon 6 mother filament FDY production technology.
7. Technical advice for technological transformation of
various filament production lines and quality upgrade.
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