Avin Square-column delinator is combined by our patent fiberglass reinforced plastics( FRP/ GRP) shank , shank cap and reflective fitting which inserted in the shank.We are the first enterprise who used the frp/ grp materials and adopted the mould pressing technology to produce shank.The reflective fitting inserted int eh shank can be the reflective sheeting or reflector. The advantages of our frp/ grp Square-column delinator: 1. High intensity, service life reach 20 years; 2. Contain no metal, never rust and no recycle value which can solve the burglar problem; 3. Corrosion-resistant for acid, alkali and gas, can widely used in seashore, saline, salt-fog and acid rain environment; 4. Well oxidation resisitant, will not pulverization, discoloration and cracking after long service. 5. Smooth surface and good appearance.