Determining the name of the accessories used in plastic windows is sometimes very difficult, since many companies that make these windows do not provide information about what accessories they use in production. This gives a wide field of activity for unscrupulous manufacturers, which, under the guise of high -quality fittings, set the cheapest and low -quality. The purchase of such windows turns into serious problems related to their operation, and these problems do not begin in a year or two but after several openings and closing the window. All this suggests that when buying a window, it is necessary not only to be interested, but also to ask documented confirmation about what accessories are installed in plastic windows.