... We are Runde Meterials specialized in manufacturing road safty metal crahs barriers (steel beams gurdrail) and barriers ... highway guardrails, guardrail end section, reflector, post (C-post, Sigma-post, Square-post, Flange-post, etc.), blocks, supporting bracket, spacers, ... requirements. Relevant Parts Required: Guardrails, Guardrail end section, Post (C, U and Sigma types etc), Spacers, Fasteners, ...