About water pumps serving agricultural production. The oil pump was replaced by electric motors, the co-operatives have to pump oil from 3 to 5 days the cost of expensive fuel and on the labor of the workers operating the machine. Now use the power pump water only from 2 to 3 October, the cost of fuel and labor cost reduction on investment of 40% from the oil pump.
đang được dịch, vui lòng đợi..