Khoom

Yu thiab TPU Hotmelt rau cov khau shooemaking

Qhov no yog ib qho ntawm feem ntau siv kub qhuav cov nplaum rau khau. Eva kub yaj nplooj yog cov kuab tshuaj nplaum dawb me me, ntxiv cov khoom siv ethylene-vinyling-vinyling-vinyling-vinyled Nws