Abstract: Along with the rapid development of expressways in the country, demand for guardrails and columns which are key parts of taffic safty facilities of expressways are expected to be tremendously increased. Weld pipe manufacturers have undoubted superiority in producing such products, and just small investments will enable them to start the production. Such production will not only maximize use of capability of existing weld pipe manufacturing equipment, but also bring about economic benefits for the producers.