Mission
home

Nylon

Bond
Amide
Structure
파일
https://lh7-us.googleusercontent.com/9hquUVRgJnFHO-xhYQ3ieloEcJFIsqPXAIKUOC2MWInKfWqLGO-PIVhc7GoeMm38AQgTzxpP4al103wiEBIqcjF5U0KWLOUVWLwEVq0_rxfp1yh75O4uNc2383TQmKjl_MRYIawGC1kyW8yxOVzYeXA