Dr. Richie Group

When manufacturing a water and gas pipe https://ukrstarline.ua/ru/ocinkovannyj-metalloprokat/ocinkovannaya-truba/ocinkovannaya-truba-vodogazoprovodnaya-kruglaya, the chemical composition of the steel is necessarily examined, the declared strength and rigidity of the product are checked by special tests. There may be small dents on the surface of the pipes, scale, scratches, but in general the product must be of high quality. If there are bulges on the pipes that affect the thickness of the walls, any deformations, cracks, chips or peeling of the protective zinc coating, then this product is considered defective.