Generally (but not always) pronouns stand for (pro + noun) or refer to a noun, an individual or individuals or thing or things (the pronoun's antecedent) whose identity is made clear earlier in the text. For instance, we are bewildered by writers who claim something like. They say that eating beef is bad for you.
A wire feeder may be used for machine or automatic welding and must be the constant speed type. The wire feeder must have a speed adjustment covering the range of from 10 in. per minute (254 mm per minute) to 125 in. per minute (3.18 m per minute) feed speed. PAW or plasma arc welding using an automated process.
It includes the power source, electrode cable, electrode holder (or TIG torch or wire feeder and gun), electrical arc, work cable and work clamp. Figure 3 illustrates the welding circuit. For determining proper welding cable size, you need to add together the full lengths of the electrode cable and the work cable. The electrode cable attaches to either an electrode holder, TIG torch or wire feeder. The work cable attaches to a work clamp.