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double layer roll forming

" found 2 Products from Shandong Deli Steel Pipe Manufacturing Factory, China

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Factory Directly Supply Hot Rolled Welded Galvanized Drip Irrigation Pipe with Low Price

Factory Directly Supply Hot Rolled Welded Galvanized Drip Irrigation Pipe with Low Price
forming a forged weld due to the heat that has already been applied to the skelp. No metal is added during welding, and the final rollers reduce the diameter and wall thickness of the pipe to the ...

Mild Carbon Erw Welded EMT 150mm Ductile Iron Pipe

Mild Carbon Erw Welded EMT 150mm Ductile Iron Pipe
forming a forged weld due to the heat that has already been applied to the skelp. No metal is added during welding, and the final rollers reduce the diameter and wall thickness of the pipe to the ...
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