Highway Guardrail (Road Barrier): 1. Normal Specification: 4320*310*83*3mm. Available in different sizes 2. Profile: W-beam; Three-beam 3. Standards: JT/T281-1995, AASHTO M-180, RAL-RG620, SPS98S or any other International Standards 4. Base steel: Steel Grade Q235B (equivalent to S235JR according to DIN EN 10025 and Gr. D according to ASTM A283M) 5. The thickness of the steel: 3mm, 4mm, 6mm or according to consumers request 6. Finish: Hot dip galvanized 7. The thickness of galvanized: 70um or according to consumers request 8. Certificate: ISO9001: 2001
