Petroleum Pipeline API Cold Rolled Seamless Steel Pipe. Petroleum Pipeline API Cold Rolled Seamless Steel Pipe is made of steel ingots or solid tube blanks through perforation to make capillaries, and then hot rolled, cold rolled or cold draw. Seamless carbon steel pipe plays an important role in China's steel pipe industry.
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Cold Rolled Black Annealed Round Pipe Manufacturers and Cold Rolled Black Annealed Round Pipe. The cold rolled pipe is also known as black annealed tube. It is welded by hot-rolled coil or strip steel after finishing rolling and annealing. The production process is the same as the hot-rolled welded steel pipe.Advantages:smooth surface, high wall thickness precision, suitable for bending.
Dongpengboda steel pipe group produce pre galvanized steel pipe since 2006, We are one of the leading pre-galvanzied steel pipe manufacturers and suppliers in China.Since the company was foundedwe have evolved into a integrated enterprise with the care of all our clients.Our pre galvanized pipe has been exported to Canada, Myanmar, Thailand, Singapore, India and so on.We have been providing a steady resource for large engineering projects at home and abroad, with special steel
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Pre-galvanized Round Steel Pipe - TIANJIN SHENGTENG China Pre-galvanized Round Steel Pipe catalog of 38mm*38mm Pre Galvanized Hollow Section ERW Welded Iron Carbon Gi Round Steel Pipes for Construction Material, China Factory BS7 Class B Pre-Galvanized Hot-Dipped Galvanized Steel Pipe provided by China manufacturer - TIANJIN SHENGTENG INTERNATIONAL TRADING CO., LTD., page1.