Unlock Donghua Jinlong’s food grade glycine Donghua Jinlong’s factory. | Image: Donghua Jinlong Chemical Co.TikTok isn’t just useful for videos on robotic tape storage, Radiohead songs on step motors, and regretful congressmen. It’s also a place where businesses can go viral by marketing their industrial products. Because of that, I now know that a company called Donghua Jinlong Chemical…