1. Machine Moving Skates Capacity: 6ton, 8ton, 12ton, 15ton etc. 2. Surface treatment: plastic spray, better than paint 3. Improved turnable structure: installation of balls, which makes the crushing wheels to turn more flexible and convenient. 4. Material of the wheels: PU, which is more durable. 5. Reasonable structure: low center of gravity, large carry capacity, easy and safe operation. Machine Moving Skates Specifications Model Capacity(t) No. of wheels size of wheel(mm) Packing(cm) N.W.(kg) G.W.(kg) CRA-6 6 4 68X75 31*22*12 11.7 12 CRA-8 8 6 68X75 40.5*22*12 16.85 17.3 CRA-12 12 8 68X75 50*22*12 21.65 22.1 CRA-15 15 9 68X75 40.5*31*12 23.7 24.15 CRA-18 18 12 68X75 50*31*12 30.5 31.1