1522
This process is useful thanks to milling of a low-cost sheet in raw material ( wood , MDF , PVC , aluminium , etc ) .
 concept or principle: process; manufacturing process: milling; material: sheet; material: raw material; material: wood; material: MDF; material: PVC; material: aluminium
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: process; manufacturing process: milling; material: sheet; material: raw material; material: wood; material: MDF; material: PVC; material: aluminium