碳钢管和不锈钢管是以材质分类，而无缝钢管是以成型方式划分的类别。碳钢管

Carbon steel pipe and stainless steel pipe material is classified, and seamless steel pipe forming method is divided into categories. <br>Material carbon steel pipe is carbon steel, mostly by welding forming method, drawing, rolling manner, a small number of extrusion molding, and wherein the drawing, rolling, extrusion called seamless steel pipe. <br>Welded steel pipe joints is called, it is weld.

Carbon steel pipes and stainless steel pipes are classified by material, while seamless steel pipes are classified by forming.<br>Carbon steel pipe material for carbon steel, molding methods are mostly welded, pulled, rolled way, a few use extruded molding, and one of the pull, rolling, extruded steel pipe are called seamless steel pipe.<br>Welded steel pipe is called a seam steel pipe, there are welds.

Carbon steel pipe and stainless steel pipe are classified by material, while seamless steel pipe is classified by forming method.<br>The material of carbon steel pipe is carbon steel. Most of the forming methods are welding, drawing and rolling, and a few are extrusion forming. The steel pipes drawn, rolled and extruded are called seamless steel pipes.<br>Welded steel pipe is called seamed steel pipe, which has welds.