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In current AM practice only a few zones in a product are defined where process settings can be defined , for example for the top and bottom facing surfaces and the bulk of the product in L-PBF .
 manufacturing process: AM; process parameter: process settings; material: be; manufacturing process: facing; manufacturing process: L-PBF
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: AM; process parameter: process settings; material: be; manufacturing process: facing; manufacturing process: L-PBF