GOST 6357-81 (ST SEV 1157-78)Group G13 STATE STANDARD OF THE USSRBasic norms of interchangeability CYLINDRICAL PIPE THREADBasic norms
Quite often, do-it-yourself apartment renovation involves processing wood in such a way as to give
Metric tapered threads with a taper of 1:16 are used for tapered threaded connections, and
Profile pipes of square or rectangular cross-section with a wall of 2 mm are in good demand among
The engine is the main element of any automatic machine, which converts electrical energy into mechanical energy. Others
Modern methods of communication are developing at lightning speed, new ways of transmitting information, parcels and
Friends spontaneously got together for a long hike and invited me. I saw no reason to refuse, so
In any home, glass sometimes needs to be replaced. Regardless of whether you are going to insert