References
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- Gul VE, Akutin MS. Fundamentals of plastics processing. Moscow: Chemistry; 1985. p. 399. (In Russian)
- Sokolov AP. Welding materials in the garment manufactures. Moscow: Light Industry; 1988. p. 72. (In Russian)
- Volkov SS. Welding and gluing of polymeric materials: textbook for universities. Moscow: Chemistry; 2001. p. 376. (In Russian)
- Volkov SS, Chernyak BYa. Welding of plastics by ultrasound. 2nd ed. Moscow: Chemistry; 1986. p. 254. (In Russian)
- Karkhin VA. Thermal processes during welding. St. Petersburg: Ed. Polytechnic University; 2013. p. 646. (In Russian)