팽창기관

Expansion Engine

팽창탱크

Expansion Tank

팽창행정

Ecpansion Stroke

퍼링

Furing

퍼치

Perch

퍼티펌프

Putty Pump

펀치

Punch

펀칭머신

Punching Machine

펀칭시어링머신

Punching and Shearing Machine

펄스 아크용접

Pulsed Arc Welding