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This paper discusses the effects of process parameters in TIG based WAAM for specimens created using Hastelloy X alloy ( Haynes International ) welding wire and 304 stainlesB-steel plate as the substrate .
 concept or principle: process parameters; manufacturing process: TIG; manufacturing process: WAAM; material: Hastelloy; material: alloy; manufacturing process: welding; material: as; material: substrate
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 parameters, TIG, WAAM, Hastelloy, alloy, welding, as, substrate 
Answer:
 concept or principle: process parameters; manufacturing process: TIG; manufacturing process: WAAM; material: Hastelloy; material: alloy; manufacturing process: welding; material: as; material: substrate