ZF series hydraulic and pneumatic grouting plug series products are another excellent product developed by our company on the basis of expansion pipes. This series of hydraulic and pneumatic grouting plugs are multi-functional and are widely used in curtain, consolidation, backfilling, chemical grouting, geological exploration water pressure experiments and drilling water plugging of hydropower stations and reservoir projects. The products meet foreign standards.

products by the national key large-scale hydropower project of cement grouting, chemical grouting application, has been the design, supervision, production, construction and other units of the expert recognition.

This product can also be used for hydraulic mining in coal mine production, rapid hole sealing and water plugging, water injection, determination of gas emission speed, concentration, prediction of working face parameters, prevention of gas disasters and other functions.