1. All employers in the United States must prove that they have made great efforts to recruit native Americans and can't find them anywhere before they can apply for H-1B. The company should also provide job opportunities for Americans whose abilities and conditions meet the job requirements.
2.H visa is a long-term work visa. H visa needs to be approved by the US Immigration Bureau, and then go back to the domestic embassy to apply for a visa. I'll stay longer and have a job.
3. The H visa pass rate can only be passed if the company that hired you in the United States is well-known and your ability is relatively strong.