1. Look at the foreign trademarks of Heng Chang Shaofang first. Generally, foreign trademarks are in English, but old trademarks are not in English.

2. Then look at the box of Heng Chang's burning house. The new packing box is made of paper boxes and the old one is made of cloth bags.

3. Finally, look at the bottle caps of Heng Chang's burning house. The new one has become a plastic cover, and the old one is a wooden cover.