QCI Refractories is an independent API 936 Refractory Inspection company providing QA/QC services, refractory installation supervision, material qualification, applicator qualification and in-service refractory inspection for refineries, LNG, petrochemical, waste-to-energy, steel, cement and other high-temperature industrial facilities worldwide. https://www.qci-refractories.com/API 936 Refractory Inspector