1.Model:DN80,DN100,DN125,DN150,DN175,DN200 2.Hardness: soft,mebium soft,hard 3.Color:red,green,blue,orange Detailed Product Descriptionconcrete ... 1.Style:hard/medium sofe/soft 2.Size:1-10inch 3.Material:rubber 4.Brand:PM Medium Soft Concrete Pump Cleaning Ball1. We ... pipes and parts in china. Our products include steel pipes, rubber hoses, elbows, bends, reducers, couplings, cleaning balls and so on ...