5 Days Prototype Machining in Irvine, California! 5 Days Prototype Machining in Irvine, Ca! Hilltop Technology Laboratory, Specializes in Prototypes, Custom CNC Machining, Short Run Productions, and Quick Turnaround Products; Rapid Prototyping of Precision Machining is our Specialty! Low Cost Single Item Production; High Quality Short Delivery Time; your Task Force for Various Demands, Solar Power ...