Tell us exactly in some detail what you are trying to do. What relay coil voltage you need or want and how much current the relay needs to switch, also the switching voltage as well as switching AC or DC current & voltage. These are the specifications for your link:
1) OUTLINE DIMENSIONS:15.4*19.5*15.0MM
2) MAX. SWITCHING CURRENT:7A, 10A
3) MAX. SWITCHING VOLTAGE:28V DC/ 250V AC
4) DIELECTRIC STRENGTH VR.M.S: BETWEEN OPEN CONTACTS ≥750VAC;
Actually I needed a DPDT relay for my project & I went to some local shop, but couldn't found that one, and one of them gave me this relay instead of DPDT relay. So I gave this link for reference. Datasheat attached
The relay they showed you is SPDT. If you read the data sheet you linked to the actual part number is broken down. Look at the ordering information heading. Do as Colin suggest and use two of what they have. I asked specific questions.