SF Express and Shentong Express in Youxian District of Mianyang can send pets. SF Express and Shentong Express in Youxian District of Mianyang can mail pets, usually by air. Except for the second kind, other express delivery generally does not support sending live animals. Express delivery, also known as express delivery or express delivery, refers to a new mode of transportation in which logistics enterprises (including freight forwarders) deliver documents or packages entrusted by users from the sender to the recipient quickly and safely through their own independent networks or in the form of joint ventures (i.e. networking).