Patent: DC control manufacturers - Lee crown, the Thai An Liguan Technology Contact: Manager Cao 15953810777 Shandong Lee crown of Electronic Science and Technology Co., Ltd. is specialized in producing high-voltage inverter, special inverter rig enhance machine special inverter frequency heating power, frequency constant pressure water supply control cabinet, high voltage inverter series KJPT series of mine explosion-proof and intrinsically safe type inverter, electric submersible pump voltage inverter, a variety of low voltage general purpose inverter and traction network leakage protection, BKT-1 to enhance the comprehensive protection WDT-type temperature logging devices, remote power monitoring system, air compressor microcomputer protection device fan remote control system, air compressor remote control system, flameproof electric meter, mobile switches, digital hedging signal device, sound light language signals, explosion-proof switch check station. Concurrently such as mechanical and electrical products, mining accessories, rubber products. Business philosophy: integrity, innovation, development, self-service concept