RS ISO 1920-7: 2004 TESTING CONCRETE — PART 7: NON DESTRUCTIVE TESTS ON HARDENED CONCRETE
36,000.00
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216,000.00
2
Rwanda Standards
RS ASTM F 2101: 2019 STANDARD TEST METHOD FOR EVALUATING THE BACTERIAL FILTRATION EFFICIENCY (BFE) OF MEDICAL FACE MASK MATERIALS, USING A BIOLOGICAL AEROSOL OF STAPHYLOCOCCUS AUREUS