12. Standards for components for piping valves (TPA)

All Codes and Regulations

Construction (Max)	Highways (Max)	National Standards for KGS (State Standards Classification)	Projects of works (PPR) on bridges	Technical Supervision
Construction Price Formation	ISO classifier	Organization Standards	PromExpert	Welding regulations
Evidence base (TR CU, Technical Regulation of the Customs Union)	National standards	Power industry	Standards for pipe fittings (TPA)

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