Chengdu HuiTong West-electronic Co., Ltd (HTW) is a leading manufacturer of Ultrasonic Sensor for car parking system in China. HTW's predecessor was one of the earliest enterprises who started to do research and produce piezoelectric ceramics for the war industry in the 1960s. It had made the excellent contribution for Communication of National Defense enterprises. Since 2000, more technicians in the war industry joined the company, and started to develop Ultrasonic Sensor using the core technology (Piezoelectricity technology). In order to be more professional in developing and producing...