forw - fuel
- forward eccentric
- forward extrusion
- forward motion
- forward shovel
- forward stroke
- fossil fuel
- fotstep
- foucault current
- foundation
- foundation bolt
- foundation drawing
- foundation plan
- foundation plate
- founding
- foundry
- foundry coke
- foundry crane
- foundry defect
- foundry engieering
- foundry equipment
- foundry lable
- foundry ladle
- foundry man
- foundry pig iron
- foundry pit
- foundry robot
- foundry sand
- foundry shop
- four bar linkage
- four cycle
- four cycle engine
- four cylinder engine
- four fluted tap
- four high stand
- four jaw chuck
- four link mechanism
- four seater
- four stroke cycle
- four stroke diesel cycle
- four stroke engine
