Between the Parts Liberty management and Blackstone’s sales teams, we have over 500 years of combined rotating equipment experience. In recent years there have been major advancements in metrology tools and technology, such as 3D laser scanning and Positive Material Identification (PMI) which we are continuing to invest in. Our combination of experience and technology places Blackstone in a unique position to provide high quality, engineered, locally sourced, affordable and timely parts to help our customers mitigate risk.