Drilltech Manufacturing Company Limited is a shareholding company specializing in R& D, design and manufacturing of blowout preventers, diverters, electromagnetism eddy current brakes and hydraulic....
The system sampling of the battery voltage, solar panel voltage, discharge current etc parameters through the computer chips, calculated by the special control model, realize the charge and discharge....
Qinhuangdao Sun Green Trade Co., Ltd is mainly engaged in supplying junction box , solar LED light, street light series, solar system and other ancillary products.Solar cell, module, EVA/ TPT film....