For BMW E36 1.6 1.8 316 318 Z3 E36 6 1.8
1.ISO/TS 16949 certification.
2.choice raw material(that our company own a PMC group to supervise it.
3.four steps for product testing.
a. components testing
b. unfinished functions testing
d. testing before delivery.
7.18 months for warranty.