1946 was invented in the United States 1985 was founded in Japan 1999 was founded in China. Motivation of invention: There was hail in the United States at that time. In order to maintain these vehicles with little maintenance cost, many experts in the automobile industry have gathered. After countless times of practice, they finally invented the car dent repair technology (called micro-sheet metal or nondestructive abroad), which can repair the car dent without destroying the original car paint. 1994 car dent repair technology was introduced from Japan to South Korea.
From 65438 to 0999, Mr. Jin Renzhi, China, introduced the restoration of the sag from South Korea to Dalian, China.