1) Many Available specifications of circular tubes (outside
diameter ×inside diameter) (mm):
2) Design range of circular FRP tubes: outside diameter
Φ4.5 - 300mm, wall thickness 2 - 10mm(may be designed
as oval-shape or other shaped hollow tubes)
3) The pultruded FRP tubes have the advantages of high
strength, low specific gravity, corrosion-resistance,
insulating capacity, transmission of electromagnetic wave,
and rich color
4) The pultruded FRP tubes are widely used and according to
their diameter they may be used as umbrella frames,
underground cable jackets, cable cores (bearing tensile
stress), handles of spade and hammer, structural members,
handrails, water pipes, and mobile telecom outdoor antennal
coves
5) The pultruded FRP tubes can be prepared to desired
colors and made from alkaline-free fiber, medium alkali