Why didn't JD.COM Harbin Exhibition Business Department deliver the goods?

JD。 Harbin convention and exhibition business department is understaffed if it doesn't deliver the goods. Express delivery is slow when there are not enough couriers. Express delivery, also known as express delivery or express delivery, means that logistics enterprises (including freight forwarders) deliver documents or packages entrusted by users from the sender to the recipient's door quickly and safely through their own independent network or in the form of joint venture (i.e. networking).