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Wire + Arc Additive Manufacturing ( WAAM ) was used to produce austenitic stainlesB-steel single bead walls in order to statistically quantify the variation of critical material properties within the build .
 manufacturing process: Wire + Arc Additive Manufacturing; manufacturing process: WAAM; material: austenitic; process characterization: bead; concept or principle: variation; concept or principle: material properties; process parameter: build
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: Wire + Arc Additive Manufacturing; manufacturing process: WAAM; material: austenitic; process characterization: bead; concept or principle: variation; concept or principle: material properties; process parameter: build