无缝钢管在整个钢材品种结构中占有较重要的地位,特别在“七五”期间,无缝钢管的生产有了很大发展,产品质量和装备水平亦有所提高。但与国民经济各部门的需要相比,不论在数量上,还是品种质量上仍有较大的差距。 Seamless steel pipe occupies an important position in the entire steel structure. In particular, during the “Seventh Five-Year Plan” period, seamless steel pipe production has greatly developed, and product quality and equipment level also increased. However, compared with the needs of various departments of the national economy, there is still a big gap in terms of quantity and quality of varieties.