Who knows the manufacturers that produce and develop automobile clock springs at home and abroad? thank you

Jiaxing Huachang Denso Co., Ltd., Tianjin Jinhe Electrician Co., Ltd., Shenzhen Guhe Electrician Co., Ltd., Wuxi Daxing Electronics Co., Ltd., Shanghai Keshida Huayang Automobile Electronics Co., Ltd., Shanghai Yingzhi Automobile Electronics Co., Ltd., Shanxi Rongchang Automobile Parts Co., Ltd. and BYD also made their own. That's all I know about domestic manufacturers at present, and other internationally renowned manufacturers also know something about it, but I don't know if there are any factories in China. They all made their own car clockwork. Jiaxing Huachang Denso Co., Ltd., in particular, specializes in producing automobile clock springs at present.