Слесарное дело is an Android application that serves as an electronic synopsis for plumbing. It can be used in lessons for the subject "General Course plumbing" or for topics related to the subject's specific component. The app is free and does not require an internet connection.

The material is divided into 16 chapters, and each chapter has a self-test of 10 questions. The app also includes a glossary, sorted in alphabetical order, for quick searching of basic terms. All materials presented in the application can be saved on the device in PDF format in the Downloads folder by granting access to files and folders.

Overall, Слесарное дело is a helpful tool for those studying plumbing, offering a convenient way to access and review information on the go without the need for an internet connection.