Custom High Quality Condenser Tube Carborundum Coated Emery Cleaning Rubber Sponge Balls Our company produces rubber sponge balls and emery sponge balls with a diameter of Φ7mm -Φ38mm. It has the advantages of soft texture, moderate elasticity, strong abrasion resistance, good water absorption, and good descaling performance. It is now an expert at flushing steam turbine condensation copper pipes. It can be washed with emery ball when hard scale is formed. At present, the product has been sold well in the fields of power generation, chemical industry, metallurgy, etc., and has become an indispensable production tool for these industries. It is also energy-saving, labor-intensive, and Essential supplies to improve equipment utilization. The quality of the product has passed the experiment, soaked in 80℃ water for a week, its expansion coefficient is 0.5 mm-1mm, and it can be used in fresh water and sea water.