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Technical information
Patent for the method of production of the pipe with cable-duct and continouos concrete coating and pipe with cable-duct (variants)
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Patent for assembly for concreted pipelines joints protection
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Patent for equalizing strain assembly and concrete coated pipelines joints protection form tension and impacts
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Canadian Patent for pipelines protective coatings
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EA for the method of protective coating production
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EA for ballasting material
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Method of concreted pipe with cable duct production
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Patent for drive pipe
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Patent for thermal insulated pipe
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Patent for joint unit of pipes with ballasting coating
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Patent for ballasting material with overdensity for submerged main pipelines
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Patent for ballasting pipe production method
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Patent for the method of application of ballasting material onto pipe for submerged pipeline
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Patent for the method а sulphate-resistant weighted pipe production
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Patent for pipe wih ballasting coating
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Patent for pipe wih ballasting coating
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Patent for pipe wih ballasting coating
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Patent for pipe wih ballasting coating
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Patent for pipe wih ballasting coating
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Patent for pipe wih ballasting coating
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Patent for pipe wih ballasting coating
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Patent for pipe wih concrete coating and pipe producing methods
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Patent for pipe wih ballasting coating
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Patent for pipe wih ballasting coating
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Patent for pipe with ballasting coating
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Патент на узел стыка труб с балластным покрытием
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The patent for pipeline anticorrosive protector
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