Rau soaking, liming, tanning, rov ua dua & zeying ntawm txhua hom tawv
1. Nruas lub qhov rooj, tso dej ntws thiab sab hauv cov screws ua ntawm 316L stainless hlau, hoops kub galvanization.
2. Iav lub thawv tshwj xeeb rau nruas, tsis muaj suab nrov.
3. Pib / phau ntawv tswj, rau pem hauv ntej thiab rov qab khiav, ib qho hluav taws xob tswj hwm.
4. Kev xaiv ib qho nrawm, ob chav ceev lossis hloov kho kom nrawm los ntawm cov hloov zaus, tshuaj chua tshuaj lom neeg.
5. Qhob lossis Hlau Nruas Foundation.