401
The investigations were carried out with hot work tool steel X37CrMoV 5-1 , which is used for the manufacturing of plastic moulds , hot extrusion dies , and forging dies .
 machine or equipment: tool; material: steel; manufacturing process: manufacturing; material: plastic; machine or equipment: moulds; manufacturing process: hot extrusion; machine or equipment: dies; manufacturing process: forging; machine or equipment: dies
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:
 machine or equipment: tool; material: steel; manufacturing process: manufacturing; material: plastic; machine or equipment: moulds; manufacturing process: hot extrusion; machine or equipment: dies; manufacturing process: forging; machine or equipment: dies