I'm writing to inform the problem of C3020CNC1501-1 to improve and develop product quality better for next order.
1. 70 Liter, the problem is Irregular skin color, scratch marks and crack marks.
2. 200 Liter, the problem of Oil Leakage because Crankcase cover's crack.
3. 200 Liter, the problem of Wheels can not be rotated because Wheels be close to stand air tank.
 for this problem we have the suggestions for you.
- please open file the attached for problem photo and Our suggestions.