1581
IN625 grains grew epitaxially on the fine grains of SS316L forming Type-I interface .
 grains, grains, forming, interface
Please list all entity words in the text that fit the category. Output format is "word1, 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:
 grains, grains, forming, interface