1). The equipment guarantee period is one year, During guarantee period, the seller will provide maintenance free service.(Except the breakdown and destroy caused by person and force majeure)

2). After receiving the inquiry for repairing the engineer of sell party will solve by phone and email, if necessary the engineer will go to solve the problem on the spot, the buyer should pay daily salary $100, also pay technical visa cost, round trip tickets, rooms and meals.

3). During the quality guarantee period, if it is the quality problem (except easily damaged parts), the cost for maintenance and replace will be borne by sellers.

4). During guarantee period, the seller will not provide service of with compensation as follows:

(1)The damage caused by person and force majeure;

(2)The damage caused by improper operating;

(3)The damage caused by reforming, decomposing assembling.

5). Paid service will be provided for the long term after guarantee period.