Ho feta ho ka hlalosoa e le mokhoa o thusang ho hokahanya liphaephe, li-valve, ho theha sistimi e felletseng ea lipopa. Ho na le litlelase tse supileng tsa liforehi tse supileng tsa mahala: # 150, # 300, # 400, # 600, # 1500 # 2500 # 2500 # 2500 # 2500 # 2500 # 2500 # 2500 # 2500 # 2500 # 2500