Call 019-3593909 from 11am to 8pm. Leave an SMS if I didn't reply.
Otherwise, visit me in EA Autoworks, Bukit Jalil to inquire face to face.
Google link in first post.
Guys, To those whom had DIY their own vertical door but do not have good, strong or longer lift absorber to lift up the door, by all means...pm me, thanx.