Devices made of V2A glass bead blasted. Back and forth movements with sintered metal plain bearings, self-lubricating. Hot-dip galvanised steel chains (V2A / V4A at an extra charge) welded before galvanising, short links, without eyelets on the connecting parts, easily replaceable and easy to shorten.

All structural parts made of hot-dip galvanised steel profiles. Back and forth movements with sintered metal plain bearings, self-lubricating.

Devices made of V2A glass bead blasted. Back and forth movements with sintered metal plain bearings, self-lubricating. High-quality roller bearings made of chrome steel or stainless steel for rotating elements, low-maintenance, easy to replace, sealed.

Device made of non-impregnated mountain larch, palisades white-peeled, sawn timber heart-cut.