What factories do the couple have in Taian?

Does the subject want to ask "What factory are the couple suitable for in Tai 'an"? Shandong Taikai Power Electronics Co., Ltd. and Shandong Northern Optical Electronics Co., Ltd..

1. Shandong Taikai Power Electronics Co., Ltd.: Established in 23, the company is located at No.9 Chuangye Street, East Development Zone, Tai 'an, and its business scope includes: contracting the design, installation, overhaul, test and service of power transmission and transformation stations and lines.

2. Shandong North Optical Electronics Co., Ltd.: The company was established on March 16, 1992, and its address is located in Yangxi, Shengzhuang Town, Taishan District, Tai 'an City. Its business scope includes the research, development, manufacture and sales of optical electronic products, laser holographic series LED products and solar energy application products.