1,Stainless steel,door key plate 2,Solid brushed,more surface 3,BB,CH,PZ,OZ,RZ to choose 4,German and European quality Our products can meet the following standard:1,DIN EN 179 for emergency exit devices2,DIN EN 1125 for panic door devices3,DIN EN 1906,Class 1 - Class 4Our products are proper for:1,Internal doors2,Tubular frame doors3,Flat entrance doors4,Main entrance doors5,Doors for heavy-duty ...