精品三级在线观看_欧美精品一区二_九九av_一本色道久久综合狠狠躁篇的优点_嫩草影院懂你的_免费av一区二区三区

Production：

Raw material：

Production：

Test guide：

Equipment：

(1).Reflow soldering machine

(2).Laser cutting machine

(3). Tool microscope

(4).Electric performance testing machine

(5).Resettable PTCs Comprehensive performance testing machine

(6).Automatic resistance test machine

(7).Resistance sorting machine