Introduction: TPC was founded in 1973 and is one of the manufacturers of air compressors, a core component of automation in South Korea. Its product and service industries mainly include the developing LCD industry, battery recycling industry, semiconductor market, and automotive market. TPC products are mainly divided into pneumatic categories: solenoid valves, triplets, auxiliary components, vacuum, 3D printers, cylinders; Linear module: linear guide rail, servo motor; Oil pressure: subclass of oil pressure; Centralized cooling and filtering device; TPC official website: www.tpcpage. cn.