Direct txheej thiab scraping ntawm cov tawv tawv

Cov kua nplaum yog scraped ncaj qha rau ntawm daim ntaub pretreated puag nrog ib tug scraper, ces lub plasticizer yog ces gelatinized thiab plasticized, thiab ces tiav los ntawm cov txheej txheem ntawm embossing thiab txias.