In Linghai, the distinction among technical companies can be described as follows:

1. Company Focus: Technical companies operating in Linghai may specialize in sectors such as electronics, automation, marine technology, or renewable energy.

2. Product Development: These companies invest heavily in research and development to create innovative products or improve existing ones.

3. Technology Infrastructure: They often have state-of-the-art facilities, labs, or partnerships with academia and research institutions.

4. Market Presence: Technical companies in Linghai may operate both domestically and internationally, targeting specific industries or geographic regions.

5. Regulatory Compliance: Depending on the nature of their technology, these companies may need to adhere to various regulatory frameworks at local or national levels.