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In order to expand the possibilities of designing technological processes for finishing shut-off valve parts, in some cases it is advisable to use the possibilities of varying various influences in a single combined method with the imposition of an electromagnetic field. A reasonable combination of physical influences allows us to provide the necessary design parameters, sufficient productivity and an increase in the resource of finished products.

The article discusses the design and purpose of a turbopump unit, in particular the pump housing of a turbopump unit of a liquid rocket engine. A device and a tool for obtaining complex profile holes in the housings of turbopump units are presented. The features of the design of techno-logical equipment for electrical discharge machining are considered. The proposed progressive design of the device and tool made it possible to process the parts of the turbopump unit of a liquid rocket engine with special holes.

This article discusses the topic of confirming the conformity of the quality of feed and feed additives coming into circulation at the Russian feed market. The idea is substantiated that technical regulation measures applied without fail to feed and feed additives are not sufficient to reduce the risk of a low-quality product entering circulation. It was found that the presence of registration of a feed additive is not a criterion for issuing a declaration of conformity and, accordingly, it is possible to draw up a declaration for an additive without its state registration. The article aims to draw the attention of manufacturers of feed and lump additives and their consumers to the issues of product quality and possible ways to solve this problem. Also, the manufacturer has the opportunity to confirm the conformity of the quality of the product on a voluntary basis. Based on the statistical analysis carried out, as well as the use of information on the number of registered and valid declarations for feed, feed additives registered in other EAEU member states, an analysis of data on the number of valid declarations registered in the Russian Federation in the Rosaccreditation register was formed.