Are you going to accept full text paper, or only abstract?
As the first step, you can submit only an abstract (1 page in A4). You will be notified the acceptance of your abstract by 20 March 2018. When your abstract is accepted, you can submit the proceedings paper (2-4 pages in A4) by 20 May 2018.
If you want to submit a full paper, the conference is recommending submitting your manuscript for publication after the symposium in a regular issue of the academic journal “Journal of Functionally Graded Materials”. The publishing expenses is free, if you submit your manuscript presented at ISFGMs 2018 until 31 December 2018. For more information, see the SUBMISSION/Journal of FGMs in this website.