Does certain fonts can't be used for embedding in css? - html

Question

I am trying to embed a font and I tried it before and it works. My code was just a regular one which is accepted by other browsers.
#font-face {
font-family: KozGoPr6N;
src: url('../font/KozGoPr6N-Bold.otf') format('opentype');
src: url('../font/KozGoPr6N-Bold.woff') format('woff');
font-weight: normal;
font-style: normal;
}
But then when I am trying to embed ShinGoPro it doesn't work at all.
This is my code before:
#font-face {
font-family: ShinGoPro-Bold;
src: url('../fonts/ShinGoPro-Bold.otf') format('opentype');
src: url('../fonts/ShinGoPro-bold.woff') format('woff');
font-weight: bold;
font-style: normal;
}
Then I use fontsquirrel and still it doesn't work.
#font-face {
font-family: 'a-otf_shin_go_pror';
src: url('../fonts/shingopro-regular-webfont.eot');
src: url('../fonts/shingopro-regular-webfont.eot?#iefix') format('embedded-opentype'),
url('../fonts/shingopro-regular-webfont.woff2') format('woff2'),
url('../fonts/shingopro-regular-webfont.woff') format('woff'),
url('../fonts/shingopro-regular-webfont.ttf') format('truetype'),
url('../fonts/shingopro-regular-webfont.svg#a-otf_shin_go_pror') format('svg');
font-weight: normal;
font-style: normal;
}
Somehow I've been thinking if this font is not applicable for embedding but then I do need to get this font to work for my web page. Does this font cannot really be embedded in CSS? Is there anything I can do for this to work?
EDIT
My code is for crossbrowser and it doesn't work at all. I linked the file of the font so that people can try what I'm trying to do. I already tried using fontsquirrel and it doesn't work at all.
Does this font cannot really be embedded in CSS? Is there anything I can do for this to work?
^ This is referring to all browsers.