Pangunahing Teknikal na Parameter; 1. Steel ball diameter: 19mm; 2. Steel ball na bumabagsak na taas 1000mm; 3. Laser precision test, katumpakan 1us; 4. Boltahe: 220V, 50HZ. Listahan ng Configuration: 1.Host–1 Set 2.Electronic timer-2 set 3.Chrome steel falling ball–2 pcs 4. Concrete block:75*75*50mm–1 pcs