Daim ntawv thov qhov chaw ntawm lub tshuab luam ntawv tshuab

Lub tshuab luam ntawv kub twj tso kua mis muaj feem xyuam rau kev ziab ntawm cov ntawv luam ntawv, gravure xovxwm, compound xovxwm, coater thiab curing chav uas xav tau kom qhuav; Nyob rau tib lub sijhawm, nws yog kev sib xyaw ua ke txias thiab cua sov qhov chaw rau GMP cog.