1660
This is largely because of the basic simplicity of the process combined with the fact that a range metals is readily available and suitable for mainstream applications .
 concept or principle: process; process parameter: range; material: metals
Given options, please tell me the categories of all the listed entity words.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} 
 Entities: process, range, metals 
Answer:
 concept or principle: process; process parameter: range; material: metals