Mobile developers: IOS & Android.
Guitar
Aws D10.9
Asme Ptc - Steam Turbine
Asme Ptc 4.1-1964 (1)
Asme Y14-24 99 Types Y Aplications Of Engineering Drawings
Asme B16.11 (2001)
Asme 31.11
Nema St 20-1992
Api-std-602
Ieee C37 04 Norma Interrruptores