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large diameter welding steel pipe

Welding of Large Diameter Pipelines: Design, Processes Welding of Large Diameter Pipelines: Design, Processes, Procedures Specifications for Welding Steel Water Pipe. Field Welding of Steel Pipe • Weld After Backfill is a sequence used to improve overall installation rate for steel pipe. • Pipe is laid and welded outside (if required). • Joint coating is applied, usually a shrink sleeve

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