≧5 قطع الأسلاك النحاسية صنع ...
Date: 3/14/2019 9:52:43 AMNovember 2009 Covered electrodes Typical analysis % (All weld metal) C Si Mn Cr Ni N Ferrite 10 FN DeLong Standard designations – CharacteristicsCreated Date: 3/15/2019 2:46:05 PMName of the scientific and technological organization: CONSULTANCY CONSTRUCTION VERIFICATION CENTER (TUL)..