Feem ntau, kev lag luam tsim khoom noj khoom haus yuav siv cov cuab yeej siv hlau thiab X-ray ntes kom paub thiab tsis lees paub cov hlau thiab cov hlau tsis muaj hlau, suav nrog cov hlau ferrous (Fe), cov hlau tsis muaj hlau (Copper, Aluminium thiab lwm yam) thiab stainless hlau, iav, ceramic, pob zeb, pob txha, tawv ...
Nyeem ntxiv