The first point: identification test machine, this is a point you can see whether Weifang diesel engine can work normally, if you are a novice, do not buy off, then in the factory must be inside or back to your factory in the test machine, let the factory master technology to open a try, see whether can the normal operation of.

Discriminate the second point: whether there will be a large number of wear and tear, such as when working, smoke, inefficiency, and so on, are the characteristics of a large number of wear and tear, bear in mind that these problems must be erased in the cradle.

These two points are enough to make you an entry point for the quality identification of Weifang diesel engine. Http://www.wfchangsong.com