V10 V20 V25 V35 V45 2520V 3520V 4520V 3525V 4525V 4535V 20VQ 25VQ 35VQ 45VQ ; 1,According to orders,pack the spare parts one by one by oil paper; 2,Put them into small carton boxes one by one; 3,Put the packed small carton boxes into bigger carton boxes one by one; 4,Put the bigger carton boxes into wooden boxes if necessary especially for the shipments by sea. 5,Metal tape packing.