HPP

Alloys of common metal; Branching pipes of metal; Bronze; Cast iron, unwrought or semi-wrought; Collapsible tubes of metal; Copper pipes; Elbows of metal for pipes; Gutter pipes of metal; Irons and steels; Metal pipes and steel and iron tubes; Metal pipes for liquid and gas transfer; steel and iron tubes for industrial use; Pipe coupling of metal; Pipe tubes of steel or iron ; Pipes of metal; Pipes of metal, for central heating installations; Pipework of metal; Rolled and peeled or ground tubes of steel; Steel pipes; Steel plates and sheets; Titanium and its alloys; Cast iron pipes; Common non-ferrous metals, unwrought or semi-wrought; Metal tubes; Metal water pipes; Steel tubes