ANSAI TECHNOLOGY CO., LTD which located in Shenzhen Guangdong China. It is a private enterprise and it has many offices in china such as Ningbo office in Zhejiang ?Shanghai office, etc. Our company is mainly specializing in designing and developing security product, especially in parking lock, wheel lock and different bollards for 10 years in Shenzhen, China. We are not one of the biggest suppliers in this field in China, but also the biggest one and the first factory to produce the remote ...