PHT is leading company in producing Pnumatic Telescopic Mast . Our pneumatic masts are widly used for Antenna, CCTV system, Mobile lights, Military, Flag mast, Fire-fighting equipment,etc. PHT also offers machinery parts, such as steel shafts, stainless steel shafts, hollow shafts, steel pipe, stainless steel pipe, aluminum pipe, air cylinders and so on.