Round Tubing Sizes

We emphasize advancement and introduce new products into the market each year for Round Tubing Sizes, Non Galvanized Steel, Seam And Seamless Pipe, Hot Finished Seamless, All products come with good quality and perfect after-sales services. Market-oriented and customer-oriented are what we have been being after. Sincerely look forward to Win-Win cooperation ! We rely upon strategic thinking, constant modernisation in all segments, technological advances and of course upon our employees that directly participate in our success for Round Tubing Sizes, Based on products and solutions with high quality, competitive price, and our full range service, we have accumulated experienced strength and experience, and we've built up a very good reputation in the field. Along with the continuous development, we commit ourselves not only to the Chinese domestic business but also the international market. May you moved by our high quality items and passionate service. Let's open a new chapter of mutual benefit and double win.


  • Factory source I Beam And H Beam - Straight welded pipe – Derunying

    Factory source I Beam And H Beam - Straight welded pipe – Derunying

    Steel pipe made of hot-rolled or cold-rolled steel plate or steel strip coil welded in a straight seam at a welding facility. Generally, the welded steel pipe has high precision, uniform wall thickness, high brightness of surface inside and outside the pipe (the surface brightness of steel pipe is determined by the surface of steel plate), and it can be arbitrarily length. Therefore, It embodies its economy and aesthetics in the application of high precision, medium and low pressure fluid. Th...
  • OEM Manufacturer Metal H Beam - Seamless steel pipe – Derunying

    OEM Manufacturer Metal H Beam - Seamless steel pipe – Derunying

    All raw materials are provided by famous suppliers such as Shougang, Laigang and Hebei iron and steel group, the quality of our products can be guaranteed. The materials of seamless steel pipe are: ordinary and high-quality carbon structural steel (q215-a ~ duq275-a and 10 ~ 50 steel), low alloy steel (09mnv, 16Mn, etc.), alloy steel, stainless and acid resistant steel, etc. Compared with solid steel such as round steel, the steel tube is lighter when the bending and torsion strength is the s...
  • Super Purchasing for Soldering Copper Pipe - Straight welded pipe – Derunying

    Super Purchasing for Soldering Copper Pipe - Straight welded pipe – Derunying

    Steel pipe made of hot-rolled or cold-rolled steel plate or steel strip coil welded in a straight seam at a welding facility. Generally, the welded steel pipe has high precision, uniform wall thickness, high brightness of surface inside and outside the pipe (the surface brightness of steel pipe is determined by the surface of steel plate), and it can be arbitrarily length. Therefore, It embodies its economy and aesthetics in the application of high precision, medium and low pressure fluid. Th...
  • Manufacturer of Round Steel Pipe - Straight welded pipe – Derunying

    Manufacturer of Round Steel Pipe - Straight welded pipe – Derunying

    Steel pipe made of hot-rolled or cold-rolled steel plate or steel strip coil welded in a straight seam at a welding facility. Generally, the welded steel pipe has high precision, uniform wall thickness, high brightness of surface inside and outside the pipe (the surface brightness of steel pipe is determined by the surface of steel plate), and it can be arbitrarily length. Therefore, It embodies its economy and aesthetics in the application of high precision, medium and low pressure fluid. Th...
  • China OEM Hydraulic Pipe - Seamless steel pipe – Derunying

    China OEM Hydraulic Pipe - Seamless steel pipe – Derunying

    All raw materials are provided by famous suppliers such as Shougang, Laigang and Hebei iron and steel group, the quality of our products can be guaranteed. The materials of seamless steel pipe are: ordinary and high-quality carbon structural steel (q215-a ~ duq275-a and 10 ~ 50 steel), low alloy steel (09mnv, 16Mn, etc.), alloy steel, stainless and acid resistant steel, etc. Compared with solid steel such as round steel, the steel tube is lighter when the bending and torsion strength is the s...
  • Low price for Rolled Steel Angle - Seamless steel pipe – Derunying

    Low price for Rolled Steel Angle - Seamless steel pipe – Derunying

    All raw materials are provided by famous suppliers such as Shougang, Laigang and Hebei iron and steel group, the quality of our products can be guaranteed. The materials of seamless steel pipe are: ordinary and high-quality carbon structural steel (q215-a ~ duq275-a and 10 ~ 50 steel), low alloy steel (09mnv, 16Mn, etc.), alloy steel, stainless and acid resistant steel, etc. Compared with solid steel such as round steel, the steel tube is lighter when the bending and torsion strength is the s...
  • Competitive Price for Flat Metal Sheets - Straight welded pipe – Derunying

    Competitive Price for Flat Metal Sheets - Straight welded pipe – Derunying

    Steel pipe made of hot-rolled or cold-rolled steel plate or steel strip coil welded in a straight seam at a welding facility. Generally, the welded steel pipe has high precision, uniform wall thickness, high brightness of surface inside and outside the pipe (the surface brightness of steel pipe is determined by the surface of steel plate), and it can be arbitrarily length. Therefore, It embodies its economy and aesthetics in the application of high precision, medium and low pressure fluid. Th...
  • Factory directly Structural Steel Angle - Straight welded pipe – Derunying

    Factory directly Structural Steel Angle - Straight welded pipe – Derunying

    Steel pipe made of hot-rolled or cold-rolled steel plate or steel strip coil welded in a straight seam at a welding facility. Generally, the welded steel pipe has high precision, uniform wall thickness, high brightness of surface inside and outside the pipe (the surface brightness of steel pipe is determined by the surface of steel plate), and it can be arbitrarily length. Therefore, It embodies its economy and aesthetics in the application of high precision, medium and low pressure fluid. Th...
  • Reasonable price Plumbing Pipe - Straight welded pipe – Derunying

    Reasonable price Plumbing Pipe - Straight welded pipe – Derunying

    Steel pipe made of hot-rolled or cold-rolled steel plate or steel strip coil welded in a straight seam at a welding facility. Generally, the welded steel pipe has high precision, uniform wall thickness, high brightness of surface inside and outside the pipe (the surface brightness of steel pipe is determined by the surface of steel plate), and it can be arbitrarily length. Therefore, It embodies its economy and aesthetics in the application of high precision, medium and low pressure fluid. Th...
  • China Cheap price Flat Chrome Metal Strips - Straight welded pipe – Derunying

    China Cheap price Flat Chrome Metal Strips - Straight welded pipe – Derunying

    Steel pipe made of hot-rolled or cold-rolled steel plate or steel strip coil welded in a straight seam at a welding facility. Generally, the welded steel pipe has high precision, uniform wall thickness, high brightness of surface inside and outside the pipe (the surface brightness of steel pipe is determined by the surface of steel plate), and it can be arbitrarily length. Therefore, It embodies its economy and aesthetics in the application of high precision, medium and low pressure fluid. Th...