Spiral price trend spiral Hebei Tian Hui Steel Pipe www.thgangguan.com 
 General low pressure fluid seam submerged arc spiral welded pipe specifications (SY5037-2000) is a hot-rolled steel strip coils for tube, often warm spiral shape, using double-sided automatic submerged arc welding or single-sided welding into the legal system for water , gas, air and steam, low pressure fluid using the submerged arc welded pipe. 

 (2) the low pressure fluid delivery tube with high-frequency spiral welded pipe specifications (SY5039-83) is hot-rolled steel strip coils, often warm spiral shape, the use of high-frequency overlap welding Welding method for low pressure fluid transport with spiral high-frequency welded steel pipe. 

 3. Pile with spiral welded pipe specifications (SY5040-2000) is hot-rolled steel strip coils of the tube, often warm spiral shape, made of double-sided submerged arc welding or high frequency welding for civil construction structures, piers, bridges, etc. The foundation piles with steel pipes. 

 4 low pressure liquid delivery pipe welded steel pipe (GB/T3092-1993), also known as the general, commonly known as the clarinet. Used for conveying water, gas, air, oil and heating steam low pressure fluid, and for other purposes welded steel pipe. The steel pipe connected to the wall thickness is divided into ordinary steel and thicker steel; take over the side into the form without the steel pipe (fluorescent tubes) and with a steel pipe. The specifications of the steel pipe nominal diameter (mm) said, spiral steel pipe 
 Spiral Pipe 
 Pump tube 
 Fabric machine 
 pvdf pipe nominal diameter is the diameter of the approximation. Habit usually expressed in inches, such as 11/2 
 And so on. The low pressure fluid welded steel unless used directly in the transmission fluid, but also a large number used as a low pressure fluid of the original tube of galvanized welded steel pipe. 
 (5) the low pressure fluid galvanized welded steel pipe (GB/T3091-1993), also known as galvanized welded steel pipe, commonly known as the white tube. Is used for conveying water, gas, air, oil and heating steam, heated and other general low pressure fluid or other uses hot-dip galvanized steel pipe welding (furnace welding or welding). Steel pipe connected to the wall thickness is divided into ordinary galvanized steel and thicker galvanized steel; take over the side into the form of threaded galvanized steel pipe and threaded galvanized steel pipe. Specifications of the tubes with nominal diameter (mm) said that the nominal diameter is the diameter of the approximation. Habit usually expressed in inches, such as 11/2 
 And so on. 
 Ordinary carbon steel wire casing (GB3640-88) is used to protect the wire and the steel pipe in the industrial and civil buildings, installation of machinery and equipment and other electrical installation work. 

 Straight seam welded steel pipe (YB242-63) is parallel to the longitudinal weld with steel pipe steel pipe. Usually divided into metric welded steel pipe, welding thin-walled tube, transformer cooling tubing. 
 Pressure fluid conveying submerged arc spiral welded pipe specifications (SY5036 
 -83) The tube is hot-rolled steel strip coils, often warm spiral shape, double submerged arc welded spiral seam steel pipe for pressure fluid transfer. Steel bearing ability, good welding performance, a variety of rigorous scientific examination and testing, the use of safe and reliable. Steel pipe caliber, transmission efficiency, and can save the laying of pipeline investments. Mainly used for transporting oil, www.naimoguanjian.com9 pressure fluid transmission high-frequency spiral welded pipe specifications (SY5038-83) is a hot rolled strip volumes for the tube, often warm spiral shape, the use of high-frequency lap welding method welding, for the pressure fluid transmission spiral seam high frequency welding