1595
In this investigation stainless steel , SS316L with particle size of 25 to 50 micro-meter were built with 30 W laser power and 1500 mm/s scanning speed .
 material: stainless steel; concept or principle: particle; process parameter: laser power; process parameter: scanning speed
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:
 material: stainless steel; concept or principle: particle; process parameter: laser power; process parameter: scanning speed