JBT 7255-2007 Water ring vacuum pumps and water ring compressors
JBT 6446-2004 vacuum valve
JBT 5520-1991 Drying box technical conditions
Low Vacuum Electromagnetic Differential Pressure Inflation Valve Type and
JBT 1090-1991 Type and type of rubber seal for type J vacuum
Drug Vacuum Dryers
JB20033-2004_ hot air circulation oven
JB4700 ~ 4707-2000 pressure vessel flange
Hot air circulation oven
Double - cone rotary vacuum dryer
JB 1092-91 O type vacuum sealing ring type and ruler
Vacuum technology - Ultra - high vacuum flanges GBT 6071-2003