It should be noted that the gross profit margin of Gongjin shares fell to 13.94% last year, and some investors are worried about the risk of continued decline in the company's gross profit margin. In this regard, Tang Xiaolin, Vice President and Trea…
It is soluble in water. Add water to create heat. It is corrosive up to a point and can cause severe irritation to skin and eyes. This product has a detergency. This product is good for washing because it is stable and does not react with acid. Abo…
In the last article, the physical foaming agents of hydrocarbon foaming agents and hydrofluorane (HFC) foaming agents have been mentioned. In this article, the chemical foaming agents of OBSH and DPT will be talked about.…