What do you mean by turning, pliers, riveting, electricity and welding?

Riveting and welding lathe pliers are the five major types of work in traditional factories, among which: \x0d\ 1, lathe, lathe, milling machine, cymbal lathe, mainly processing mechanical parts. \x0d\2。 The fitter is a comprehensive type of work, and the machine repair workshop can do anything, and is good at mechanical installation and repair. \x0d\3。 In the past, riveters mainly used rivets to connect steel structures, but now they mostly do material forming and welding connection. \x0d\4。 Needless to say, the electrician belongs to him, involving strong electricity, weak electricity and program-controlled circuits. \x0d\5。 Welders mainly do welding.