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Product and material science

Steel
All steel elements are made of solid profiles, tubes and sheets. Steel is produced primarily from iron. Pure, metallic iron is a fairly soft, silver-white metal. In the Earth's crust is iron with about 6 % the second most common metal and the fourth most common element. From iron ore and coke, pig-iron is produced in blast furnaces, which becomes to steel by reducing the carbon content. All screws are made of stainless steel.

Stainless Steel
Stainless steel elements of ashtrays and litterbins have a brushed surface. Stainless steel cycle stands have a polished or a glass-pearled blasted surface.

Cast iron
The side panels of the benches consist of cast iron with lamellar graphite or spheroidal graphite iron. Cast iron with lamellar graphite is the eldest cast material on the base of iron and it is characterised by excellent absorption properties and its resistance to corrosion. The essential components are iron, carbon and silicon. Compared to normal cast iron, a significantly lower sensitivity of wall thickness is achieved. Spheroidal graphite iron has the same basic material, but during the melting of the cast iron, the adding of magnesium effectuates, that the graphite changes its form from lamellar-shaped to ball-shaped, which causes a higher absorption of impact energy.

Surface protection and colouring
After the construction process all steel elements get a durable hot-dip galvanizing against corrosion and a high-class colour-coating according to RAL or micaceous iron ore DB, cast-iron-elements get a sandblasting before the anti-corrosion-coating and the colour covering according to RAL or micaceous iron ore DB.

Bilinga
Bilinga is a tropical hardwood from sustainable cultivation for protection of ecological resources and has at the beginning a yellowish-brownish impression, which changes after a few month outdoor weathering in a silver-gray colouring. Resistance category 1, Definition: very durable, for a life-expectancy beyond 25 years. Bilinga is a medium- to heavy-weight wood with extreme favourably resistance characteristics, which are significantly higher than those of beech and oak.

Kambala
Kambala is a tropical hardwood from sustainable cultivation for protection of ecological resources and has at the beginning a brownish impression, which changes after a few month outdoor weathering in a silver-gray colouring. Resistance category 1-2, Definition: very durable, for a life-expectancy up to 25 years. Kambala is a medium- to heavy-weight wood with extreme favourably resistance characteristics, which are higher than those of beech and oak.

Lignon
Lignon is a pinewood from sustainable cultivation for protection of ecological resources and has at the beginning a yellowish impression, which changes after month outdoor weathering in a silver-gray colouring. Resistance category 1, Definition: very durable, for a life-expectancy beyond 25 years. Lignon is a medium- to heavy-weight wood with extreme favourably resistance characteristics, which are significantly higher than those of beech and oak.

Douglas-fir
Douglas-fir is a homelike, medium heavy kind of pinewood with an initially ginger-red impression, which changes after a few month outdoor weathering in a silver-gray colouring. Douglas-fir wood has good resistance characteristics and is poorer in having branches.

Larch
Larch is a homelike, supremely durable wood with an initially ginger impression, which changes after a few month outdoor weathering in a silver-gray colouring. Larch wood has good resistance characteristics and is regarded as the most robust pinewood.  


Wood is a natural product and is a subject to the conditions of physical principles which are affected by differences of temperature and differences of air humidity. We strictly reject any warranty for cracks and curves, splicing, the relieve of glaze, branches, grey-black discolouration – they can arise because of the reaction of iron ions, the shrinking respectively swelling of wood and the resulting consequences, as well as resin leaking from the wood. Further claims, particularly claims for damages of any kind are excluded.
 
If desired, the coverings of the seats and decorative slats can be made from other (homelike) woods or as well from recycling-wood laths.

All products are factory pre-assembled, the delivery is ready for installation.