1. Material checking: Quality control on new materials, to sort out
the qualified and rejected materials before production.
2. Chips testing: we purchase chips and test every chip stablity
and quality before and during the production.
3. Battery testing: we check every battery to be on A degree to
4. Semi-finished products testing: Make all semi-finished products
to test, if no good,then sort out to repair or replace.
5. Finished products testing: Make all finished products to strict
test before delivery.
6. QC spot checking: Randomly check before delivery to sure the