auto battery clamp for all kinds of auto battery auto battery clampHudain Auto Electric Co., Ltd has two sub-factories:Shanghai Hudain Auto Electric Co., ... is located in Shanghai with over 100 employeesZhejiang Hudian Auto Electric Co., Ltd is located in Zhejiang Province with ... ,horn, flasher specially.In Zhejiang Province , we produce auto regulator for alternator, horn, and relay.Our products are ...