2087
H researched using conformal cooling channels in hot metal extrusion and also found significant production efficiency improvements .
 machine or equipment: conformal cooling channels; manufacturing process: hot metal extrusion; manufacturing process: production
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: conformal cooling channels; manufacturing process: hot metal extrusion; manufacturing process: production