4. Declaration of conformity with the requirements of TR TS 032/2013 On the safety of equipment operating under excessive pressure EAEU N RU D-BY.PA07.V.99897/22 for the production of seamless hot-formed steel pipes for general purposes made of carbon and alloy steels: ordinary /increased manufacturing accuracy; quality groups - B, C, D, D; working pressure over 0.05 to 49.0 MPa (calculated for the corresponding range of products); nominal diameter over 25.0 to 168.0 mm, working media - gas, steam, medium group - 1; nominal diameter over 32.0 to 168.0 mm, media - gas, steam, medium group - 2; nominal diameter over 25.0 to 168.0 mm, working medium, medium group 1; elements of pipelines of categories 1 and 2 in accordance with Appendix No. 1 TR CU 032/2013. Products are manufactured in accordance with GOST 8731 “Seamless hot-formed steel pipes. Technical requirements”, GOST 8732 “Seamless hot-formed steel pipes. Range of products.