Cov hlau tsis muaj hlau

Raws li ib qho ntawm cov kws tshaj lij uas tsis yog ferrous hlau manufacturers thiab lwm tus neeg nyob hauv Suav teb, peb tau tshwj xeeb los ntawm cov khoom zoo thiab tus nqi zoo. Thov so assured mus yuav cov qib siab - qib non ferrous hlau ua nyob rau hauv Tuam Tshoj ntawm no los ntawm peb lub hoobkas. Tiv tauj peb kom paub meej ntxiv.