621
The results confirm that hybrid technologies combining WAAM and forging are very promising for Ti-6Al-4 V part production .
 enabling technology: hybrid technologies; manufacturing process: WAAM; manufacturing process: forging; material: Ti-6Al-4 V; manufacturing process: production
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: manufacturing standard, machanical property, manufacturing process, material, engineering feature, process parameter, machine or equipment, application, process characterization, enabling technology, biomedical, concept or principle 
Text: {0} 
Answer:
 enabling technology: hybrid technologies; manufacturing process: WAAM; manufacturing process: forging; material: Ti-6Al-4 V; manufacturing process: production