Robert Mastrapa joins Glasswerks L.A., Inc. as operations manager

Robert Mastrapa has joined Glasswerks L.A., Inc. as operations manager at the company headquarters in South Gate, Calif. A 30-year veteran of the glass industry, he served with Oldcastle BuildingEnvelope as assistant general manager prior to his appointment at Glasswerks. Mastrapa will be responsible for implementing the “6S System” at Glasswerks' main fabrication facility in South Gate, according to a release.