ladies and gentlemen，good evening . I ' m very glad to give the presentation to you。today I'd like to talk alk

I ' m served in Xxxx company limited，Xxxx for short . it is a member of China energy engineering corporation limited . our cour

as the technical director，my work includes the following contents . these are my main work contents . next I want to

piping production has more than 10 processes from raw material to finished product . do you think what ' s the most important process in piping That

when people talk about the welding，maybe these pictures will appear in their mind . yes，this is welding，But it '

let ' s see the definition of welding。

welding : a joining process that produces coalesce nce of materials by heating them to the welding temperature，With or without the application

according to the different heating，pressure and filler metal，welding has many types . each welding process has is

no matter which welding process，the final goal is the same . the question is，“how？”it ' s a difficult and complicated problem . when I am looking for the answer，I have found some rules . it ' s interesting that the rules can also also

the first is preparation . when we want to get an excellent weld、we must have qualified welder、acceptable base meter A welding(NP)

the second is suffering . think back the definition of welding . heating，pressure or heating and pressure，sose Pee ning

the third，carefulness and attention . one weld is composed of many layers from root pass to surface pass . whichever The entivefor people It is even worse . be cause It can be repaired . but time waits for no man . people can never go back and grow up again。(NP)

live is like welding .

When you are studying hard，under pressure or feeling intense，congratulations，you are on the way to success .