This class includes repair and maintenance of fabricated metal products of division 25.

This class includes :

Repair of metal tanks, reservoirs and containers

Repair and maintenance for pipes and pipelines

Mobile welding repair

Repair of steel shipping drums

Repair and maintenance of steam or other vapor generators

Repair and maintenance of auxiliary plant for use with steam generators : condensers, economizers, superheaters, steam collectors and accumulators

Repair and maintenance of nuclear reactors, except isotope separators

Repair and maintenance of parts for marine or power boilers

Platework repair of central heating boilers and radiators

Repair and maintenance of fire arms and ordinance (including repair of sporting and recreational guns)

This class excludes :

Repair of central heating systems, etc., see 4322;

Repair of mechanical locking devices, safe, etc., see 8020.