Khoom zoo
Nws muaj cov yam ntxwv tsis yooj yim deformed tom qab thauj khoom, noo noo-pov thawj, kev co-txo, suab nrov-absorbing thiab zoo rwb thaiv tsev, thiab yooj yim rau nruab. Cov khoom ua tau raws li lub teb chaws tsim kev lag luam qauv thiab yog corrosion-resistant thiab huab cua-resistant kom tau raws li cov kev cai siv mus sij hawm ntev.
Sau koj cov lus ntawm no thiab xa tuaj rau peb