Pipeline valves. Forgings, die forgings and rolled stocks. Technical requirementsPipeline valves. Forgings, die forgings and rolled stocks. Technical requirements
State system for ensuring the uniformity of measurements. Relative dielectric permittivity the loss tangent of solid dielectrics. Procedure of measure from 10 in 9 degree to 10 in 10 degree Hz
Thermal power plants. Heat-power equipment. Water-chemical regime cleaning and conservation, based on an amine-containing reagent «VTIAMIN». Norms and requirements
