Propack Systems manufactures Conductive Grid Bags / Tubes. Propack Systems also manufactures Electro Static Discharge Control Products, Clean Room Products and PCB Assembly Equipments. The Conductive Grid Bags / Tubes are used to protect the printed wire boards and components from the tribo electric charges inside as well from outside through the conductive grid printed on the outside. The Inside Surface Resistivity of Conductive Grid Bags / Tubes ranges from 10^ 9 to 10 ^ 12 ohms/sq and the outside Surface Resistivity of Conductive Grid Bags / Tubes ranges from 10 ^ 6 ohms/sq.