RS ASTM C311/C311M-22 STANDARD TEST METHODS FOR SAMPLING AND TESTING FLY ASH OR NATURAL POZZOLANS FOR USE IN PORTLAND-CEMENT CONCRETE
15,000.00
198
2,970,000.00
2
Rwanda Standards
RS ISO 1452-2: 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 2: PIPES