The automobile consists of millions of parts, generally including the most advanced technology of various fields such as human body engineering, acoustic, electromagnetic, material physics, laser, automation.

 In modern times, the automobile has the functions such as entertainment, multimedia, working, communication, besides as a transportation tool. To achieve these functions, thousands of electronic components must be assembled together to form a complex product.

 For the automobile, material is the basis and its quality is the prerequisite for successful production. GST performs monitoring on the automobile manufacturers, through mechanical performance testing and reliability analysis on plastic, textile, rubber and so on.

 Playing with toys is child's?instinct. However, potential safety hazard of toys probably causes a great danger. In a toy, dangerous structure design or crude production and processing is enough to cause serious injuries, including choking, suffocation, reining, visual damage, hearing damage, etc.,