stainless steel tubing(The company has ordered, as part of a capital construction program, a roller hearth furnace for annealing stainless steel tubing in a pure hydrogen atmosphere. 作为基本建设规划的一部分，该公司已订购了一台不锈钢管材纯氢气氛退火用辊底式炉。)
large-and medium-sized pipes(The plant specializes in the production of hot-and cold-rolled flat products as well as in large-and medium-sized pipes. 该车间专门生产热轧和冷轧扁平材以及大、中型管材。)
making tube(The manufacturer has modestly described the two basic ways of making tubes as either wrapping an accurate hole in steel strip or pushing a very strong hole through a steel bar. 这家制造商简明扼要地描述了两种基本制管方法：一是用带钢卷出一个精确的孔，二是在钢棒上推轧出一个坚固的孔。)
