How do you deal with quality control?

How do you deal with quality control?

We have a complete mature processes for inspecting,a strong QC team inspect goods every day,they can decide the semi-product or finish-product is ok or rejected.They are seperated from factory and belong to our another sub company,so they are not afraid any workers or factory directors' complain.That's why they can make the strict level always same.They are same as our customers' agent in factory,to monitor the whole production processes.