”ブラジル・日本・韓国及び香港を除いて23kg”
"the weight less than 50 lbs. or 23 kgs (except on flights to/from Brazil, Japan, China, South Korea or Hong Kong, where the bags may weigh up to 70lbs)."
http://www.aircanada.com/en/travelinfo/airport/baggage/checked.html
The overall measurement of each piece (L + W + H) must be less than 62 inches or 158 cm, and the weight less than 50 lbs. or 23 kgs (except on flights to/from Brazil, Japan, China, South Korea or Hong Kong, where the bags may weigh up to 70lbs). Don’t exceed these limits or you’ll have to pay an additional amount (effective for travel after October 12, 2005) at the airport prior to travel. Note that checked baggage weighing more than 70 lbs or 32 kgs. will not be accepted.
自分で調べなよ。