Thanks for all the replies.
I have an EZ Olympic bar for a year and yes, the length is about 1.5m for the EZ... I thought it could do the job for deadlift, military press etc... but after a while my wrists hurt due to the angle of holding the EZ. I am now considering a straight bar (short one) to solve the problem. I will use the EZ bar just for bicep curl for its actual purpose (hope I am not wrong).
Currently all my weight plates mounting size are Olympic diameter and I don't think they fit into ordinary thin diameter Bar Bell (and they are widely available in 1.2m or 1.5m) unless I buy a whole set of similar size plates which will cost me a bomb.
I must add that I prefer the built of the Olympic set with the rotating sleeves. Try both and you will know what I mean.
Some overseas sellers do carry "1.5m Olympic Bell Bar" - 16kg for example see-
Ziva Nickel Plated Olympic Bar - 1.5m (16kg) at Powerhouse Fitness
but unfortunately it is not available here.