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201/ J1 J2 J3 Square Pipe Tube Welded Tube Polished 1" Factory Wholesale SS201 J1 J2 J3Tube
In the stainless steel industry, 201 is a material. 201 stainless steel refers to the general name of 201 stainless steel and acid-resistant steel. 201 Stainless steel refers to the corrosion resistance of air, steam and water and other weak medium steel, and acid resistant steel refers to the corrosion resistance of acid, alkali, salt and other chemical erosive medium steel, national standard model is 1Cr17Mn6Ni5N.