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Processing parameters of tensile specimens were 195 W laser power , scan speed of 900 mm/s with 40 micro-meter thickness layer .
 concept or principle: parameters; machine or equipment: tensile specimens; process parameter: laser power; process parameter: scan speed; process parameter: layer
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:
 concept or principle: parameters; machine or equipment: tensile specimens; process parameter: laser power; process parameter: scan speed; process parameter: layer