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china spiral welding saw pipe piles factory
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Large diameter Spiral , founded in 1976, is one of the founders of pipe fittings in North China, the company is located in the "China pipe fittings capital"
API 5L Line Pipe. SY/T5037 Spiral submerged arc-welded steel pipe for pipelines for low pressure field fluid service. SY/T 5040 Spiral submerged arc-welded steel pipe piles. CJ/T 3022 Spiral submerged-arc welded steel pipe for municipal heat supply. IS 1978 Steel tubes for use in transportation of oil; gas & Petroleum productsSome results are removed in response to a notice of local law requirement. For more information, please see here.
