... .stopping water Mine Filling Packer(Liquid packer) for Rock Reinforcement,Injection SystemsDescription:Grouting for the coal mine with seal is piling, ... pressureRubber pressure > 7 MPa pressure blastingM20X1 thread: link. 5Suitable for: chemical grout, cement or other media. All products can ... .Shandong Hock Mining Engineering Co.,Ltd Filling Packer for Sluid and Grounting,Resin,Rock Reinforcement