• 

  Petercem

• 

  Pompetravaini

• 

  PETRECO

• 

  Baker Petrolite

• 

  Claudius Peters

• 

  Colombo Filippetti

• 

  DVP Vacuum Pumpe Technology

• 

  Gerwah-Peter

• 

  Lister Petter

• 

  Nilpeter