... pads.Used for maintaining, repairing and revamping the concrete floor, liquid penetrant or hardener and densifier for floor. After rough and ... :20# 30#,60# 80#,150# 300# Technical parameter: Model2T-2LqualityHigh quality/economiccolorBlack,red,goldapplicationKinds of concrete floorSegment size3-9mm*2*12 ...