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ERW Pipe. High-frequency straight seam electric-resistance welded steel pipe ( erw steel pipe) is hot-rolled coil after forming machine, the use of high-frequency current skin effect and proximity effects, the tube edge heating and melting, squeeze roller under pressure welding to achieve production. High-frequency resistance welding steel pipe ERW Welded Black Steel Pipe Tube Black Carbon ERW Steel PipeERW Steel Pipe and Tube, ERW CasingERW Pipe. High-frequency straight seam electric-resistance welded steel pipe ( erw steel pipe) is hot-rolled coil after forming machine, the use of high-frequency current skin effect and proximity effects, the tube edge heating and melting, squeeze roller under pressure welding to achieve production. High-frequency resistance welding steel pipe ERW Welded Black Steel Pipe Tube Black Carbon ERW Steel PipeERW Steel Pipe, Electric Resistance Welded Steel Pipe, ERW Steel Pipe, EFW Steel Pipe, Electric Resistance Welded Steel Pipe, High-Frequency Welding Steel Pipe and Other Pipe Fittings. Abundant Inventory + Competitive Pric e. Top quality Hydralic Test, X-ray, Offer-line UT, Eddy Current Inspection, etc, 3rd party inspection to test. Fast delivery Many sets of advanced production equipment to produce, as well as perfect logistics system.

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imagesBlack Steel Pipe,ERW Black Steel tube-CHN Steel pipe ERW Welded Black Steel Pipe Tube Black Carbon ERW Steel PipeWe offer Black Steel Pipe, ERW Black Steel tube which is widely used in various Industries and also for domestic purposes. Black Carbon Steel tube is a very useful one in automobile Industries, structure etc. We also manufacture Galvanized Steel Pipe of very fine quality. We are among the leading black steel suppliers in China.Quality ERW Steel Pipe ERW Black Steel Pipe factory ERW Black Steel Pipe. AWWA C213 EN10210 EN10219 S235J2H ERW Black Steel Pipe. S275JR EN10217 EN10210 EN10219 S235 ERW Black Steel Pipe. GB/T9711 BS 1387 Astm A252 Grade 3 ERW Black Steel Pipe. ERW Carbon Steel Pipe. High Tensile Strength SCH 160 ASTM A53 ERW Carbon Steel Pipe. GOST EN 10204 PSL2 API 5L 22mm ERW Carbon Steel PipeERW Black Steel Pipes ,

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