... in an impact.Pillar: 60 X60 rectangular steel, and the top of the frame welding have V type. Or use mmX100mm 70 ... and links with the ground a pillar of up and down and adjust; 3. The fence at the airport of the transverse bending with four ... , welding, preflex, inspection, buy box, destructive testing, and beautify the (PE, PVC, hot dip), packaging, storage. The Airport Of The Fence With Barbed Nets