Russian standards PDF
GOST R 53561-2009
Pipelines valves. Gaskets of oval, octagonal section, lens steel for valves flanges. Design, dimension and general technical requirements
Document status: Active
€10
GOST 10434-82
Electric contact connections. Classification. General specifications
Document status: Active
€10
GOST 10585-99
Oil fuel. Mazut. Specifications
Document status: Replaced by GOST 10585-2013
€10