Underground and civil engineering services, including construction and reconstruction work by placing an internal cladding into trenchs for underground waste water drains, potable water pipelines, gas lines and other pipelines

Fluid mixing equipment including parts and fittings for these goods

Roller skates; skate-boards; ice skates; clothing for wear in use of the aforesaid goods; parts and fittings for all the aforesaid goods

Repair, maintenance or refurbishment of pipes, ducts or conduits including water mains, sewer pipes or lines and other ducts