ORDERING DATA (Example)     Nominal ball diameter (mm) = 25 25 Ball Type RS = Standard RS Mixture Colour 15 = 15 15 Ball texture M = Medium M Ball diameter tolerance O  NOMINAL DIA : Ball size is from 15 to 45 mm dia in 1 mm steps. For Ring Coated balls, coating of 1 – 2 mm will be additional to nominal dia BALL TYPE MIXTURE BALL TEXTURE TOLERANCE RANGE Temperature upto 800° C Copper & Brass Tubes RS - Standard Ball RA - Ring Coated Abrasive RAT - Fully Coated Abrasive Titanium & SS Tubes RB - Scouring Ball RG - Ring Coated with fine granulated plastic  15 - Red 10* - Yellow 20 - Blue 15 - Red 35 - Dark Blue 30* - Fleider S - Soft   MS - Medium Soft M - Medium MH - Medium Hard H - Hard SH - Super Hard   0 + 1. 0 (std) - 0 1.. + 0.5 - 0 2.. + 1.0 + 0.5   * Lower Sinking Velocity .. Special Types