P.64 METALEX 2016_APM#81.pdf 1 9/27/2559 BE 09:05 Hitachi Asia_PM#101.pdf 1 8/17/2559 BE 14:43 18 30 C C M M Y Y CM CM MY MY CY CY CMY CMY K K 33 R HITACHI PSA Nitrogen Gas Generator N2 Pack Inverter