Quality control system：

1． IQC
2． IPQC
3． OQC
4． QA,QE

Customer feedback system：

1． we will quickly respond to the product quality problems reported by customers, propose effective measures and improved scheme, and timely follow-up after the confirmation of customer;
2． We will have analysis in time on the feedback use status and improvement suggestions, and continue to improve product under the premise of guaranteeing no influence on the use of customer.
3． We will continuously track the usability of improved product.

Main testing equipments：

1． FISHER
2． high-temperature oven
3． push-drawing instrument
4． salt spray test instrument
5． projector
6． card seat tester (self-made)
7． card seat tester (self-made)
8． calipers
9． resistance tester
10． universal meter

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