Dab tsi yog Acetate Sunglasses

Tam sim no, feem ntau ntawm cov khoom siv acetate yog acetate fiber ntau, thiab ob peb qib siab yog propionic fiber. Cov phaj hom acetate fiber ntau tau muab faib ua hom txhaj tshuaj molding thiab nias thiab sib tsoo hom. Raws li lub npe qhia, hom txhaj tshuaj molding yog nchuav nrog pwm, tab sis tam sim no, lawv feem ntau yog nias thiab polished acetate iav.