It is made of selected imported Korean pine and has undergone strict anti-corrosion, mildew-proof, moisture-proof, and insulation treatments. It is the most commonly used basic equipment for fire protection and emergency rescue units. The product is composed of three types of wood wedges and clogs, including cone, square wedge, and pyramid, with a total of 29 specifications. The plugging wooden wedge can plug the leaking medium at a temperature range of ≤120 ° C and withstand the pressure of the leaking medium at ≤0.4MPa, which is suitable for low pressure and low corrosion medium leakage.