Select item you would like to order from the catalog
If you are registered user, on the items page click the 'Add to Cart' button. After that this item adds to your shopping cart and you can continue to browse other items.
If you are registered user, after you added to cart all items you would like to order, then go to your 'Shopping Cart' page by clicking the 'View Cart' button.
If you don't want to register, then after 'Step 1' on the item page click 'Make an Inquiry' and fill the form.