In the Pearl River Delta, there are Changyuan Electronics, Wall Nuclear Materials, and Alpine.
In Suzhou, there are more than a dozen, such as Dasheng, Jiuwei, Huading, Boer, etc.
In Wenzhou, there are too many, the well-known ones include Huayi, Yongli, Yonggu, Leite, Nanda, Huapeng, etc.
Huangshi, Hubei, there is a Shenbo, which is also very good
Northeast, mainly in Changchun and Jilin, such as Changchun Yinghua, Xianzhong Heat Shrink, Jifu, etc.