أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
according type of the project that this project requires some contractors in determined field , you should to make selective tender between nominated contractors , if else make it as open tender . in addition to make arrangements to negotiate and exchange offers & proposals
1- look at his portfolio & historical experiences .
2- their situation in running Project .
3- have a look to his break down prices if it rational .
4- ask them to proof his manpower quantities .