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Welding technology of double - sided spiral

Double-sided spiral pipe is the arc in the flux layer under the welding method, the use of welding wire and flux between the solder layer in the combustion of the heat generated by welding, welding flux and metal base metal and the formation. This welding technology as long as the change in forming angle, you can use the same width of the strip to produce a variety of caliber steel pipe.
Double-sided spiral pipe welding technology has the advantage of its welding is continuous bending forming, so the length of steel pipe length is not limited; weld spiral evenly distributed throughout the steel pipe circumference, so the steel pipe size accuracy, strength High; easy to change the size, suitable for small batch, multi-species production of steel.

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