... 500 One-component High-pressure Concrete Injection Pump, Waterproof injection PumpStandard Configuration:Injection pump 1 pieceMaterial Cup:1 pieceHigh pressure pipe :1 piece ... , not pipe, structural non-destructive. 7, with water plug: For a variety of gap leakage, wave ... leakage, underground water gushing. Grouting plugging directly with water. Could effectively inject grout into ...