Pipe fittings widely know as fittings  and many components  that are using to connecting two pipe and  valve together to joint in many method, such as thread, welding, mechanical, solvent welding, soldering, compression and flange fittings etc. Pipe fitting or pipe fitting is the occupation of installing or 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.