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Two high speed steel ( HSS ) alloys were laser cladded on 42CrMo4 steel cylindrical substrate by using a 4 kW Nd : YAG laser source .
 material: high speed steel; material: HSS; material: alloys; enabling technology: laser; material: steel; concept or principle: cylindrical; material: Nd : YAG; machine or equipment: laser source
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: high speed steel, HSS, alloys, laser, steel, cylindrical, Nd : YAG, laser source 
Answer:
 material: high speed steel; material: HSS; material: alloys; enabling technology: laser; material: steel; concept or principle: cylindrical; material: Nd : YAG; machine or equipment: laser source