Double ceiling fastening size 3, sockets with/without spacing

Made of steel S235JR, galvanized
Dimension a: 200 mm
Dimension a1: 224 mm
Dimension b: 80 mm
dimension b1: 254 mm
dimension d: 17 mm
dimension d1: 11 mm
dimension h: 81 mm
dimension l: 118 mm
dimension l1: 80 mm
dimension s: 6 mm
dimension s1: 6 mm
dimension x: 82 mm