Technical information


Patent for the method of production of the pipe with cable-duct and continouos concrete coating and pipe with cable-duct (variants)
Patent for assembly for concreted pipelines joints protection
Patent for equalizing strain assembly and concrete coated pipelines joints protection form tension and impacts
Canadian Patent for pipelines protective coatings
EA for the method of protective coating production
EA for ballasting material
Method of concreted pipe with cable duct production
Patent for drive pipe
Certificate of trademark
The patent for pipeline anticorrosive protector

 


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