... standard of dryer cylinders for the designing: QB/T2556-2008Machinery> ANSI, EN ... , DIN, NF, BS, JIS, TOCT and GB etc...... 2.the standard of dryer cylinders for the ... Dryers Used in Paper Machinery> Pressure Equipment Directive 97/23 CE& ASTM etc...... 3.the standard of dryer cylinders for the supervising ...