RS 353-7: 2022 WATER QUALITY — CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION — PART 7: POLYALUMINIUM CHLORIDE HYDROXIDE AND POLYALUMINIUM CHLORIDE HYDROXIDE SULFATE
13,500.00
3
40,500.00
2
Rwanda Standards
RS 507: 2022 ELECTRONIC CANE FOR PEOPLE WITH VISUAL IMPAIRMENT — REQUIREMENTS