National Quality Supervision&Inspection Center for Refractories(NRQS)was set up in 1986 and was authorized in 1990 by State Bureau of Quality and Technical Supervision(SBQTS)as the state supervision&inspection center(Certificate SBQTS No.101).In1993,NRQS was granted Import&Export Authorized Laboratory for national refractories by the State Administration for Entry Exit Inspection and Quarantine(Certificate No.5302).In1995,NRQS was granted the national testing organization by State Committee of
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