Useful Information
- 
              INTERNATIONAL SPECIFICATION COMPARISON CHART
- 
              BS 970 (1991) TOLERANCES
- 
              ISO TOLERANCES
- 
              CONVERSION FACTORS OF STANDARD UNITS
- 
              WEIGHT FORMULAE
- 
              HARDNESS COMPARISON TABLE
- 
              GAUGE SIZES FOR TUBES AND SHEETS (SWG)
- 
              BS EN 10204 Certificate Types
- 
              Surface Quality
