Bare Mg anodes could be supplied in prepackaged type. The bare Mg anodes will be assembled with cable and sealed with epoxy resin and packaged in cotton bag. As the prepackaged anodes are buried under the ground. If there is any harmful element in the backfill of prepackaged anodes, this element will leak to the earth and groundwater when the anode is in use, which will pollute the environment. Deyuan prepackaged anodes are made of recyclable materials or easily decomposable materials and the content of harmful elements in the backfill is lower than safety standards, which will not bring any pollution to the surrounding. The available cables type(insulation/sheath) are:PVC/PVC,XLPE/PVC, HMWPE with any required size