Change when component of main transfer machinery

Change when component of main transfer machinery 2, 4 what take maintenance item. 2 ％ .

Symptom: Average life is in leather belt 100 thousand kilometer, change in time please. Solve: Every travel 100 thousand kilometer changes when transmission component. Maintain the price: Maintain this project man-hour to expend 230 yuan of ／ to cover, cost of raw materials is covered for 1500 yuan of ／ .

Note: Price of  of former plant fittings offers reference only.

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