A great early project for beginners is to build a metal welding table. It will be good practice and you will rarely have to weld from the floor after the build.
D-sub is the name of a series of connectors, which are made up of Combi D-Sub connectors, dual-port D-Sub connectors, filter D-Sub connectors, and high-density D-Sub connectors. This blog will explain the standard D-Sub connector and D-Sub cover in more detail.
A suspension clamp is designed to give the conductors both physical and mechanical support. This is important especially when you have installed the conductors for the power transmission line and even telephone lines.