RS ISO 15609-4: 2009 SPECIFICATION AND QUALIFICATION OF WELDING
PROCEDURES FOR METALLIC MATERIALS —
WELDING PROCEDURE SPECIFICATION —
PART 4: LASER BEAM WELDING
19,500.00
6
117,000.00
2
Rwanda Standards
RS ISO 16311-3: 2014 MAINTENANCE AND REPAIR OF CONCRETE
STRUCTURES —
PART 3: DESIGN OF REPAIRS AND PREVENTION