Converter, rig dedicated inverter supply, Shandong rig inverter] Shandong Lee crown of Electronic Science and Technology Co., Ltd., Tel: zhang 15953810777, Shandong Lee crown of Electronic Science and Technology Co., Ltd. is specializing in the production of high-voltage inverter rig dedicated to enhance machine dedicated heating power, constant pressure water supply control cabinet, high pressure series, KJPT series of mining flameproof and intrinsically safe electrical submersible pump medium voltage, a variety of low-voltage Universal and traction network leakage protection, enhance the comprehensive protection BKT-1 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.