Thank you guys so much for the quick reply. Yesterday, I successfully jacked my car up
.
I am using the "rails" on the box channel to jack my car up, and use the manual referred jack points for jack stand. I didn't use the welding point near the frond suspension because I couldn't find it that time.
I will post a picture later when I am home. I use a piece of wood to spread force before, but later on I found the metal is very strong so I simply use a floor jack to put my car off the jack stand. I might dent the metal a little. I am not sure. I need to take a look today. But I didn't hear any cracking sound yesterday.