Hebei Sea River Industry and trade Co.,Ltd has being given back to society since establishment.We totally donated more than 500,000RMB.
1、construction of roads and built a school for our village.
2、assisted people including poor college students and the childre...
Sodium carboxymethyl cellulose is the cellulose which is most widly used in the world and is of the biggest dosage. The products of polyanionic cellulose are widly used in oil drilling, especially in salt Wells and offshore oil drilling. Sodium carboxymethyl cellulose was first made in 1918 by Germany and then it granted a patent in 1921 and produced in the world.During the Second World War,sodium carboxymethyl cellulose was used in synthetic detergent by Germany. The polyanionic cellulose has good heat stability and salt tolerance and the antimicrobial resistance is strong. The polyanionic cellulose is widely used in petroleum drilling, especially in salt wells and offshore oil drilling.