Profile: Huaway Guardrail Engineering Co. manufactures W Beam (profile A), profile B or three beam galvanized highway guardrails, and different types of steel posts (C Posts, U Posts, Sigma Posts). We can also supply bolts, nuts and washers, brackets, spacers and relevant guardrails components. We supply highway guardrails and fencing barriers. We are an ISO 9001:2000 certified company. Plastic Coated Highway Guardrail is an engineered safety barrier designed to create a physical and visual separation between traffic lanes and other roadside hazards.