This client is one of the largest automobile manufacturers in Indonesia and they are a major supplier of Benz and Mitsubishi. They were previously utilizing a CO2 laser cutter which was unable to satisfy their business needs as the laser performed with low cutting efficiency and large power consumption. After visiting the client, we learned that the customer was trying to cut carbon steel 8mm-16mm thick. We offered two solutions, a 3000W fiber laser cutting Machine and 4000W fiber laser cutting Machine. The two solutions were compared focusing on different aspects for reference. Considering their budget and production demands, the client felt the 3000W fiber laser cutter was more suitable for their needs. We then invited the client to our exhibition hall in Indonesia for a demonstration and they were very satisfied with the results.