Zhongmen Metal Tube is a leading OEM/ODM factory in China, specializing in the production of high-quality stainless-steel pipes. Our range includes round, square, and rectangular pipes made of 201, 202, 304, 316, 316L, 321, 309, 310, 410, 420, and 430 grades, all cold-rolled and seamlessly welded for superior strength and durability.