San Antonio TX Traffic Safety
San Antonio Traffic Safety Equipment & Services Permanent Guardrail Installation Services in San Antonio – The most common non-rigid guardrail system is the w-beam guardrail, a hot-rolled steel rail having a w-shaped cross-section that is galvanized (zinc-coated) for corrosion security. W-beam guardrails are set up normally parallel to the highway on posts sunken into the […]
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