For starters, understand that the lifting platform is supposed to provide a solid, secure area for lifting - it is supposed to be capable of taking the pounding of heavy weights being dropped from arms' length overhead, day after day, and it needs to provide a sure-footed area for doing your lifts.
Class K welding cable is the most commonly used. Your standard welding cable is 30 AWG stranded and is available in a red or black jacket. Class K cable is commonly used for stationary welding jobs. Item (sold by the foot) O.D.
It comes out of the same nozzle your welding wire is fed through so it literally creates a protective cloud around the arc as you're welding. A MIG welder is also a wire-feed type welder. The metal that it uses to create the weld material is held on a spool inside the welder. The type of material it uses depends on what type of metals you're joining, but it's always a metallic wire. For beginners, or for welders who need ultimate portability, some welding wire contains flux inside it, eliminating the need for a separate tank of welding gas. This works, but is inferior to a proper gas setup.