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For example Air New Zealand are saving significant repair costs by making their own replacement seat tray-tables using materials like the flame-retardant ULTEM 9085 polymer material from Stratasys .
 process parameter: repair costs; concept or principle: materials; material: polymer material; application: Stratasys
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:
 process parameter: repair costs; concept or principle: materials; material: polymer material; application: Stratasys