The laboratory has two jobs, their own unit project department does not have a laboratory, then each time to send the test you have to go, accompanied by the superintendent; if you that project department is very large and has a laboratory and does not require to be sent to the designated quality supervision station testing, is to do their own test block their own test, but generally their own laboratory is very single function, a lot of materials still need to be sent to the quality supervision station to test

.