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Spiral Sub-merged Arc Welding

Sub-merged Arc Welding Longitudinal

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Anti-corrosion

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External Coating Line

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Internal Lining

Anti-corrosion

Anti-corrosion

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Shandong Shengli Steel Pipe Co., Ltd

Shengli Steel Pipe (Dezhou) Co., Ltd.

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Hunan Shengli Xianggang Steel Pipe Co., Ltd.

Spiral Sub-merged Arc Welding

Sub-merged Arc Welding Longitudinal

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