... dryer cylinders for the designing: QB/T2556-2008<
Design Standard of Cast Iron Dryers Used in Paper Machinery> ANSI, EN, ... DIN, NF, BS, JIS, TOCT and GB etc...... 2.the
standard of dryer cylinders for the making,testig,inspecting: QB2551-2008 ... > Pressure Equipment Directive 97/23 CE& ASTM etc...... 3.the
standard of dryer cylinders for the supervising: