Nws tuaj yeem siv los ua cov khoom noj pub mis lossis dej trough.
1.Sheep yas feeder txais thoob ntiaj teb kev txhaj tshuaj molding tshuabkev tiv thaiv ib zaug thiab ruaj khov
2.High siv ib puag ncig tiv thaiv yas, nyab xeeb tsis muaj tshuaj lom.
3.Products ntxiv antioxidants, tshuaj pleev thaiv hnub.Antifreeze, thiab lwm yam., UV weathering kuj tsis kub tsis kam.
4. Kev lag luam thiab siv tau, yooj yim los ntxuav cov khoom seem.