A:We provide only PDF format for all standards,you can print,share,read with no limit on any computer, tablet or smartphone.
Q:How to download the PDF?
A:Under normal circumstances, you will receive the files by mail within half an hour after the order is processed.
Q:How much time I recive?
A:You can download the PDF immediately after pay for your order.
BUT parts of the PDFs in the website unable download immediately. We will process your order as soon as possible. You will receive email notification when it’s done.