This extended engineering paper (10,000-word edition) presents a comprehensive technical analysis of advanced quality control procedures in precast concrete structures. Developed by Vandir Becker Filho, Technical Engineer and Responsible Professional of a Concrete Testing and Analysis Laboratory, the study integrates industrial production processes, laboratory testing, field inspection, durability assessment, and failure mechanisms. The paper discusses critical aspects such as material selection, batching, casting, vibration, thermal curing, steam curing cycles, temporary storage, transportation logistics, erection procedures, structural tolerances, and PCI-based quality control classifications. It also examines pathological manifestations including cracking, delamination, corrosion of embedded steel, prestress failures, dimensional deviations, and durability-related deterioration. Aligned with PCI MNL-116, PCI MNL-135, ASTM C31, ASTM C39, ACI 318, and ABNT NBR 9062, this publication provides a robust framework for engineers, laboratories, inspectors, researchers, and industry professionals seeking excellence in industrialized construction, structural reliability, and long-term performance of precast systems. This work demonstrates applied engineering expertise, contributes to construction quality improvement, and aligns with national interest priorities related to infrastructure, safety, and materials innovation.