Guardrails are widely used in the maintenance of municipal engineering, transportation, communities, ports, airports, and storage areas. Such products are becom...

1  The materials used in the metal railing and handrail project should be Q235 steel specified in the current national standards for carbon structural ste...

There are generally many types of guardrails, and the main ones on the market now are painted iron railings or iron flower railings. However, they generally hav...