Jan 07, 2013
Two wave beam, highway guardrail:
1. For traffic safety purpose
2. W beam or thrie beam
3. Hot dipped galvanized
Description of two wave beam, highway guardrail: 1. W-Beam (thrie-beams are also available)2. Base steel: Q235 (S235JR / ASTM A283M) or Q345 (S355JR / ASTM...