RS ISO 15609-2: 2019 SPECIFICATION AND QUALIFICATION OF WELDING
PROCEDURES FOR METALLIC MATERIALS —
WELDING PROCEDURE SPECIFICATION —
PART 2: GAS WELDING
9,000.00
4
36,000.00
2
Rwanda Standards
RS ISO 23590: 2020 HOUSEHOLD BIOGAS SYSTEM REQUIREMENTS:
DESIGN, INSTALLATION, OPERATION, MAINTENANCE
AND SAFETY