Huyen Doan Vo Nhai Address: Dinh Ca Town, Dinh Ca Town, Vo Nhai District, Thai Nguyen Province Enterprise code: 4600492689 Phone: 02083827484 Adress: Vo Nhai District, Thai Nguyen Province Dinh Ca Town, Vo Nhai District, Thai Nguyen ProvinceFounding date: 19 - 2 - 2009