The primary packing methods are as follow picture shows, bubble bags and cartons of different sizes.
Which packing methods would be used to your order ? 
it's not fixed, the specific packaging depends on the quantities and the weight of tatal products of your order. For example,  your order will be packed with the largest size carton if there is too much items in your order.
  1.  After-sales service card
  2.  Swing tag(s)