Or:
There are articles to be done in the translation of Huasu, referring to PetroChina Sinopec and Sinopec Sinochem. If Hua Su's Hua also refers to China, sino can be considered.
In addition, if you make plastic, you can use plastic, or you have seen plastic products companies use plastic only.
Heshan zhongsu industrial co., ltd.
Heshan zhongsu industrial co., ltd.
To sum up, the abbreviation of the three letters can be HIC/HSIC (Huasu Industrial Co., Ltd.) or SPI/SPIC (Heshan Zhongsu Industrial Co., Ltd., Heshan Zhongsu Industrial Co., Ltd.).