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Present work investigated the use of Cold Metal Transfer ( CMT ) welding for additive manufacturing of copper‑aluminum alloys with addition of silicon in small amount .
 manufacturing process: Cold Metal Transfer; manufacturing process: CMT; manufacturing process: welding; manufacturing process: additive manufacturing; material: alloys; material: silicon
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: Cold Metal Transfer; manufacturing process: CMT; manufacturing process: welding; manufacturing process: additive manufacturing; material: alloys; material: silicon