Censtar fuel solenoid valves's appearance is like credit card, but the card contains one or more in conformity with the relevant standards of the international standardization organization (ISO) integrated circuit (IC) chip and package to facilitate the people carrying the CARDS, it has a temporary or permanent data storage capacity, which is a self protection can be memory. In fact fluid solenoid valve is the integrated circuit card IC card, solenoid valve china is a kind of along with the development of semiconductor technology and application security requirements such as increasing arises at the historic moment, is a capacity for microprocessor and large capacity storage of integrated circuit chips embedded in the plastic substrate and made of card.