Step 1: use "order by reference".
Step 2: display the order.
Step 3: change a quantity, if necessary, add a comment on the order and confirm the comment.
Step 4: at the bottom of the order form will need to enter your email address. If you are a new customer, a registration window you will be proposed. After entering your contact information, return on the purchase order and pass to step 5
Step 5: choose the way of payment.
Step 6: After receipt of your payment, the parts will be ordered to the manufacturer then will be shipped from Colissimo Post office.