Metallic rod/bar covering method for highway barriers, involves providing specific component with expansion agent, in between walls of mold and rod, which when expanded and solidified form deformable covering over rod

摘要

Method of coating metal parts for roadside guardrail and playgrounds, comprising the arrangement of the part to be coated into a mold, whose walls and the part a chamber in which integral polyurethane is injected with a blowing agent is determined.