ต้นทุนรวม หมายถึง ค่าใช้จ่ายจากการท

Total cost refers to the expenses, the head of the steel rods and materials come to cover a carved leaf spring system hydro-cracking alik, including use of the tool consists of a labor cost, material costs and investment costs on the basis of the appropriate distribution.

.Total cost cost of the material covered the head steel bar and making machine disarm tweezers system using hydraulics. Including the use of such tools consist of labour cost, material cost and cost ค่าลงทุน.