Mechanical and Electrical Works"leader in electrical works and air conditioning"Intelligent Building Systems"Pioneered the concept of intelligent building systems (IBS) in Indonesia"Building Automation Systems"One of our long history is the experience and expertise." Mechanical and Electrical Works"leader in electrical works and air conditioning"Intelligent Building Systems"pioneered the concept of intelligent building systems (IBS) in Indonesia"Building Automation Systems"One of our long history is the experience and expertise."