Helen R. Salvatierra
OIC, Area IV (Caloocan City, Malabon, Navotas City,Valenzuela City)
Phone: (+632) 332.0829
Fax: (+632) 332.0847
Email: NCR.Area4@dti.gov.ph
HelenSalvatierra@dti.gov.ph
Cell Phone: (0920) 918.4656
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