This check is conducted during the very early stages of the
production process (between 0 and 20%). The purpose of the check is
to inspect the process parameters and to verify that the final
product will meet the desired quality requirements.
We are humans and naturally humans make mistakes, so do factories
in China. About half of the factories in China have production
issues. If no strict quality check is performed, factories will
make according to their standard. That is why to determine the
faults earlier is a time and cost saving process,when you figure
out the problems when all goods are finished, it will waste lots of
time and money to revise. In our experience, we did a quality
control while the production just had started, we figured out the
color the factory used was totally different from what the customer
wanted. This is a major fault. After check up, the factory revised
the color immediately. If we performed a quality check after the
products are almost finished, this could be a major issue and the
shipment will be delayed due to the revision of the issues found at
the quality control.
So it is strongly recommended to do a quality check in the early
stage of the production process. This quality control is required
in China especially to avoid misunderstanding and faults in the
further production process.