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保温钢管可供选择的材质非常多,目前市场上最常见的也是选择量最大的为Q235B材质的直缝钢管和螺旋钢管还有20#材质的无缝钢管，这两种材质的管材市场上基本都有现货，螺旋钢管和直缝钢管选择的标准都为国家标准，无缝钢管选择的标准为8163，不管选择哪些材质、哪些标准一定要依据用户的要求进行选择，不能按照自己的想法去选择，否则很容易出现工程事故，这种厚度是任何人也无法承担的。
There are many materials available for insulating steel pipes. At present, the most common and largest selection on the market is Q235B seamless steel pipes and spiral steel pipes, as well as 20# seamless steel pipes. There are basically spot pipes in the market of these two materials. The selection standards of spiral steel pipes and straight seam steel pipes are all national standards, seamless steel. The selection criterion is 8163. No matter which materials and standards are selected, they must be selected according to the user's requirements. They can't be chosen according to their own ideas. Otherwise, engineering accidents will easily occur, and the thickness can't be borne by anyone.