plat - powd
- porcelain enamelling iron
- pore
- pore cluster
- pore-forming material
- pore-free
- pore-free deposit
- pore-size distribution
- pork pie furnace
- porosity
- porosity test
- porous
- porous bearing
- porous bronze
- porous chromium
- porous coke
- porous deposit
- porous-diaphragm cell
- porphyry copper
- porphyry deposit
- port
- port end
- port roof
- port roof slope
- port sidewall
- port slope
- portability
- portable foundry
- portable mold drier
- portable spot welder
- portable spot-welding head
- portable submerged arc welder
- portable welding gun
- portable X-ray stress-measuring apparatus
- portal crane
- porter
- porter bar
- porthole
- porthole die
- portion
- position control system