The general business projects are: investment and establishment of industries; ultrasonic technology and application development; ultrasonic cleaning machines, plasma cleaning machines, laser cleaning machines, steam cleaning machines, high-pressure cleaning machine equipment and instruments, as well as the research and development and sales of garbage disposals, fruit and vegetable washing sinks, household appliances, kitchen appliances, and cleaning appliances; domestic trade; import and export of goods and technology; technical services, technology development, technical consultation, technical exchanges, technology transfer, and technology promotion.