Shenzhen Jianghe Chengda Technology Co., Ltd. Shenzhen Jianghe Chengda Technology Co., Ltd. (hereinafter referred to as Jianghe Chengda) is a high-tech enterprise based on smart cards, RFID tags manufacturing, the company's products include contact IC cards, inductive IC cards, droplet cards, low frequency RFID tags, high frequency RFID tags, ultra high frequency RFID tags etc. Në ruöön de 2012, Jianghe Chengdu acï bɛ̈n ya looi, ku ka smart cards ku RFID tags bɛ̈n ya looi ka tɔ̈u ka tɔ̈u ka tɔ̈u ka tɔ̈u ka tɔ̈u ka tɔ̈u ka tɔ̈u ka tɔ̈u ka t Smart cards and RFID products are widely used in transportation, security access control, attendance cards and supermarkets, dining, tourism, entertainment, water and electricity, archive book management, automation physics, anti-counterfeiting traceability and other IoT industries and areas. Smart cards and RFID products are widely used in transportation, security access control, attendance cards and supermarkets, dining, tourism, entertainment, water and electricity, archive book management, automation physics, anti-counterfeiting traceability and other IoT industries