guizhou huahong xinda transportation engineering co., ltd. mainly produces and sells corrugated beam steel guardrails, cable guardrails, steel pipe columns, brackets, anti-resistance blocks, column caps, bolt accessories, bridge carbon steel composite pipe anti-collision guardrails, bridge stainless steel sidewalk guardrails, traffic markings, municipal steel road guardrails, immersed plastic guardrails and contour marks, protruding road signs, anti-glare boards, speed bumps and other series of traffic safety facilities products. 