... model. Name: Item-500 Single High-pressure Injection Pump, Grouting PumpInjection pump 1 pieceMaterial Cup:1 pieceHigh pressure pipe :1 piece 5 metresController : ... protection: mechanical performance is good, no noise, no pollution 2, portable: small size, light weight, easy to carry, ... tick slot, not pipe, structural non-destructive. 7, with water plug: For a variety of gap leakage, wave leakage, ...