GEOTRON SYSTEMS (Pty) Ltd. 10 jeppe street Potchefstroom 2520
Male integrated science Nig Ltd Renown Plaza Opp. Rehoboth cathedral, Oluyole Estate Aare Junction , Ibadan, Oyo state. Nigeria.
GK WATER EXPERTS P. O. Box 62313 Tabata kisiwani House no 30 Dar es salaam Tanzania,
Asha Power Technology Ltd. House No # B115, Road No # 7 Mohakhali DOHS,Dhaka-1206 Bangladesh
PQWT is a professional institution in China who engaged in the R & D, manufacturing and sales of underground water detector, water leak detector, leakage automatic analyzer, cavity detector, mine locator, dam piping detector, and borehole inspection camera.