Is the quality of Cangzhou Jiahe very poor?

Not really! It depends on chance and luck. For example, two cars of the same model, one company, one inspector from one place of production, have a unified certificate, but some have returned to the factory half a year after leaving the factory, and some have not had problems for five years. So you can't deny a company because of the quality of a product. Of course, we should also take into account the comprehensive consideration of product utilization rate, material and price.