澳式护栏价格 马路中央隔离栏 道路锌钢护栏 可定制
Australian guardrail price road central barrier, road zinc steel guardrail can be customized
一种是常规异型管轻型经济护栏。
One is the conventional special-shaped tube light economic guardrail.
一种是异型管重型护栏,基础设施的改造。
One is the transformation of special-shaped tube heavy-duty guardrail and infrastructure.
城市护栏市场竞争日益激烈,常规异型管轻型护栏出现了两款变形。
With the increasingly fierce market competition of urban guardrail, two types of light-duty guardrail with special-shaped tube have appeared.