Research products, Crystal lamp hanger machine Research methodology are as follows: 1. create a tool in research. 2. population and sample 3. trial operation 4. collection of information 5. analysis and conclusions
Research products, lamps and hanging crystals. Research methodology is as follows: 1. To create a research tool second. Population and sample 3. For the test 4. Data collection 5. Analysis and Results
Research on lighting products machine hanging crystal are research methods as follows.1 creation research tools.2. Population and sample.3. The experiment.4. Data collection.5. Analysis and conclusion.