Information on technology. International standardized profile RA. Relaying the connectionless-mode network service. Part 9. Definition of profile RA51.1121, relaying the Connectionless-mode Network Service between CSMA/CD LAN subnetworks and PSDNs using virtual calls over a digital data circuit/CSDN leased line permanent access
Translucent products with safe glazing for buildings of preschool educational and general education organizations. Monitoring of technical condition, maintenance and repair during operation
