Copper fitting and bronze valves are parts of a pipe or tube systems.They're the occupation of installing or can repairing piping or tubing systems that convey liquid,gas,and occasionally solid materials.This work involves selecting and preparing pipe or tubing, joining it together by various means, and the location and repair of leaks.

Pipe fitting work which combines copper fitting and bronze valves is done in many different settings: manufacturing,hydraulics, refineries,computer chip fab plants, power plant construction and other steam systems. Pipe fitters which combines copper fitting and bronze valves(sometimes called simply "fitters") are represented in China by the China Association of Journeymen and Apprentices of the copper fitting and bronze valve Industry of China.

Copper fitting and bronze valves in a pipe or tube work with a variety of pipe and tubing materials including several types of steel,copper, iron,plastic,aluminium.Pipe fitting is not plumbing, the two are related but separate trades.Pipe fitters which combines copper fitting and bronze valves,who specialize in fire prevention are called Copper fitting and bronze valves’ combination another related,but separate trade.