Istanbul design group Kümülatif chose industrial materials for its debut line of homeware, with items including mirrors, bowls and photo frames.

The collective's New Industry: Uncertain Geometry collection explores the qualities of raw materials such as copper, linen and aluminium, with a line of products created in partnership with production facilities around Istanbul.

"They are open to trying out new applications and can be motivated to move out of their comfort-zone," the collective explained in a statement.

"Therefore the production processes are open to intervention and can be subverted in unexpected ways."

Experimenting with processes including computer numerically controlled (CNC) routing and embroidery, the line features copper bowls patterned with opposing linear textures, and containers that separate into contrasting metal halves that slot neatly together.

Frames have been reduced to single pieces that can house photos in a set of grooves, and angled mirrors have been designed in contrasting materials and sizes.

"Although their forms may appear to be ambiguous at first, their purposes are revealed through interaction with the human body," the collective said.

The Kümülatif team describe themselves as "a non-hierarchical initiative that defines the design process as a collective experience", and the six-strong group brings together expertise from the fields of social science, product design, production and graphic design.

Every six months the collective plans to run themed workshops at different industrial facilities around Turkey, which will result in a range of products that will be sold in small batches. All designers will receive an equal share in the earnings.

"Immersing ourselves in this environment we have lived/observed/tinkered/drew/made together, we challenged ourselves to run a democratic design and production process, while responding to the cultural, material and economic characteristics of the location," the studio added.

Danish interiors brand AYTM also contrasted materials and textures in its debut collection, which was unveiled at last week's Northmodern trade fair in Copenhagen.