Silvermoon,

Company working visa is issued initially 3 mos, and valid entry 3 mos too. Then her company can apply in the Immigration for a 1 yr-3 yrs working permit to be stamp into her passport when she arrive here in Qatar. She only needs her passport upon arrival coz her name is already listed in the computer system of Airport Immigration that she has working visa under her company sponsorship. If she needs an original copy of her visa in Canada Intl. Airport...just log in to this web www.moi.gov.qa , then click E-services, click visa inquiry, click her nationality, enter her visa no. then print. You can check w/ company regarding her visa no. And lastly it would be advisable for her to bring along a police certificate clearance from her country.
I just hope these would be of great help to you.