We now offer newly revised license exam study materials for the following CSLB trade classifications: C-27 Landscaping C-38 Refrigeration C-43 Sheet Metal C-55 Water Conditioning But wait… there’s more! These trades are also newly updated: C-6 Cabinetry & Millwork C-17 Windows & Glazing C-31 Construction Zone Traffic Control C-35 Lathe and Plaster C-50 Reinforcing Steel […]