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Powder bed fusion ( PBF ) is ideally suited to build complex and near-net-shaped metallic structures such as conformal cooling channel networks in injection molds .
 manufacturing process: Powder bed fusion; manufacturing process: PBF; process parameter: build; machine or equipment: metallic structures; material: as; machine or equipment: cooling channel; machine or equipment: molds
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: Powder bed fusion, PBF, build, metallic structures, as, cooling channel, molds 
Answer:
 manufacturing process: Powder bed fusion; manufacturing process: PBF; process parameter: build; machine or equipment: metallic structures; material: as; machine or equipment: cooling channel; machine or equipment: molds