Joel Cristóbal

Documentos
ASA Z32.2.3-1949 Graphical Symbols for Pipe fittings, Valves and Piping
ASA Z32.2.3-1949 Graphical Symbols for Pipe fittings, Valves and Piping
AWS STD A2.4-12 Standard Symbols for Welding, Brazing, and Nondestructive Examination (Spanish)
AWS STD A2.4-12 Standard Symbols for Welding, Brazing, and Nondestructive Examination (Spanish)
NFPA STD 22-18 Norma para Tanques de Agua para la protección contra incendios privada
NFPA STD 22-18 Norma para Tanques de Agua para la protección contra incendios privada