2. On-site service. Used before, specializing in field work, only suitable for business teams, and low integration with FMCG industry.
3. Lian Kai Software Company. Old-fashioned software, interface and functions are getting older and older, but it has a good hand.
4. Kilometer network. I've known it for some time, and it's more about shopkeepers helping them buy and sell goods, and the pattern is relatively small.