RS 433-1: 2020 FACE MASKS — SPECIFICATION — PART 1: MEDICAL MASKS
18,000.00
55
990,000.00
2
Rwanda Standards
RS ISO 1452-4: 2009 PLASTICS PIPING SYSTEMS FOR WATER SUPPLY AND FOR BURIED AND ABOVE-GROUND DRAINAGE AND SEWERAGE UNDER PRESSURE — UNPLASTICIZED POLY(VINYL CHLORIDE) (PVC-U) — PART 4: VALVES
