830
Using Electrical Discharge Machining in combination with forming is an option to manufacture a U-shaped First Wall without welding .
 manufacturing process: Electrical Discharge Machining; manufacturing process: forming; concept or principle: manufacture; manufacturing process: welding
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:
 manufacturing process: Electrical Discharge Machining; manufacturing process: forming; concept or principle: manufacture; manufacturing process: welding