There has been tension between China and Canada since the arrest of one of the key prodigies of Huawei in Canada. Recently, China rejected a meat imported from Canada because according to China the meat contain chemical which has been banned internationally. Should tension still keep on rising, which of these countries will suffer most?
It is good to see a country supporting their citizen which is not happening in my country. 
But this is nothing related to arrested issues,if an imported product doesn't meet the requirement then there is nothing wrong on refusal right.
That's right and no need to give more malicious issues for the both country, the issue here is all about bussiness not war, china banned the product came from Canada because I agree is possible doesn't meet the quality standard requirements of China policy, we need to,respect that decision of china governments. To avoid misunderstandings.