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2016
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Highway guardrail plate raw materials
Author:
Highway guardrail plate raw materials] Highway guardrail plate is generally used waveform beam guardrail plate, the metal material is made of carbon structural steel cold-formed, the index is not less than GB/T 700-2006 "carbon structural steel" in the Q235 steel requirements. The surface is generally hot dip galvanised or plastic coated to prevent rust.
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