... parts from Nanjing Fastech Co.,Ltd is 60 days. 2.If the items is defective, please notify us within 3 ... will be replied in 3 work daysCompany InformationFastech Co., is a professional semiconductors supplier from Nanjing, East China, with ... modules, Mosfet, Connectors, Resistors, Relays, sensors, photoelectric switches, inverters, fuse, PLC, Circuit Breakers, contactor, Encoders, Counter, On Button and ...