Plate: Smooth steel plate, steel quality ST-37, 3mm thickness, with 7mm x 7mm square bore holes. Frame: Rectangular bar made of calibrated steel, 90x40x2mm steel quality ST-32, hot-rolled BK according to standard DIN-2394. Finishing: "Epoxy" resin, with thickness of 80-100 microns. Supports and Legs: Aluminum L-2560-60, smelted according to standard une-38256. Table Tops: Bonded wood board with DM fibers, varnished with polyurethane resins which include two heavy-duty components. Seats+backs: Flexible polyurethane covered with Boatexa coating. Softness:  10mm in standard version and 40mm in comfort version. Upholstery: according to catalog.