First, you can genarate CSR here
https://www.chinassl.net/ssltools/generator-csr.html
Click ‘生成CSR文件’, then get your CSR and private key, save or download them or check your@email.com if you choose to sent to your email.
CSR
Key
Second, you should go to https://assl.loovit.net/?a=add&pid=1 to apply your SSl.
Click ‘Verify’ and OK.
Third, choose your administrator email of yourdomain.com, for example, postmaster@yourdomain.com.
Check postmaster@yourdomain.com and approve the order.
Finally, get the SSL CERTIFICATE at the bottom.