【摘要】 随着我国高速公路的迅速发展， 作为高速公路交通安全设施重要组成部分的护栏板和立柱需求量将大幅增加。焊管企业生产此种产品有着明显的优势， 只需少量的投资即可投入生产。这样既可以充分发挥焊管生产设备的潜力， 又可以提高企业的经济效益。更多还原

【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.更多还原