Sitronics was founded in 2007 in Hong Kong by ex-KT employees with headquarters in Shanghai. We have eight full time field service engineers who has been working for KT for more than ten years in Shanghai and Taiwan.We support the following models of KLA-Tencor tools parts and service.Bright field: 28xx/2365/2367, 2351, 2139/2138/2135/2132/2131Dark field: AIT I/AIT II/AIT XUV/AIT XP/AIT XP+Surf-scan: SP1, 64XX, 62XX.Fast: F5X, Flex, RS, HRP, UV and Thermawave toolsTool ModelServiceParts coverageEngineer2351-23672135-2139Service contract100%FourAIT1-AIT XUVBillable40%OneSP1, 6XXX Billable90%ThreeFAST Billable50%OneWe offer full service contract and billable service. We do KLA-Tencor tool refurbish, install, service and etc. We also support customer for the tool application.